[lifted250]

Nah  it's perfect


Sent from my iPhone using SoCal Jet Boats

[capogniracing]

That's a whole lot of carb for an olds bud. 👍👍👍👍


Sent from my iPhone using SoCalJetBoats mobile app

Agreed. Might wanna see what your heads will flow and figure out cam specs, and compression and give C&J a call to see if they can choke it down.


"RTCP"

[JordanDangerfield]

I had to see what she is going to look like.

[78Southwind]

I got this in the mail a couple days ago. I am going to add a 175 HP shot.

What's the best way per cubic dollar to retard the timing? I currently have a 6M-2 box. I have been looking at the Programmable Timing Computer since it's a good price but it looks like you have to lock out your distributor. I really don't want to lock out the timing. So now I am leaning towards the Digital Retard Control or a 6 plus. Any other ideas?

Also, I want to use my claysmith fuel pump (14 to 16 psi) to fuel both the main fuel system and the nitrous fuel system. I am looking at running two fuel regulators and dead head them at 6/7 psi. I also want to run a fuel safety switch on the nitrous fuel system. For the electrical, I am going to run a toggle switch to arm the nitrous system then a microswitch set for full throttle and a nitrous push button. Yada Yada... So does this sound good?

[attachimg=1]

[capogniracing]

I got this in the mail a couple days ago. I am going to add a 175 HP shot.

What's the best way per cubic dollar to retard the timing? I currently have a 6M-2 box. I have been looking at the Programmable Timing Computer since it's a good price but it looks like you have to lock out your distributor. I really don't want to lock out the timing. So now I am leaning towards the Digital Retard Control or a 6 plus. Any other ideas?

Also, I want to use my claysmith fuel pump (14 to 16 psi) to fuel both the main fuel system and the nitrous fuel system. I am looking at running two fuel regulators and dead head them at 6/7 psi. I also want to run a fuel safety switch on the nitrous fuel system. For the electrical, I am going to run a toggle switch to arm the nitrous system then a microswitch set for full throttle and a nitrous push button. Yada Yada... So does this sound good?

[attachimg=1]

Just went/going through the same thing. I was thinking of a msd-6425 ignition and a msd- 8970 retard. A magnafuel 500 pump running both regulators. And I'm still gonna have locked out timing and a crank trigger. I would love to go with the Msd 6520 and think this is the best dollar for dollar but I need to be able to retard atleast 11 degrees and the 6520 only is capable to retard 9.9 which would work great for your set up. And maybe run a seperate fuel pump for nitrous to avoid a possible lean out. That's my 2 cents.


"RTCP"

[socaljst1970]

Opened up some UPS packages with goodies!  Full new set of Autometer gauges (including gps speedo) and our 1350 PTO!!

COME ON SUMMER!!!!!!!!!!!!

[81sprint]

Shaved 100 lbs off the motor with some new shiny parts

[lifted250]

Put


Sent from my iPhone using SoCal Jet Boats

[78Southwind]

Just went/going through the same thing. I was thinking of a msd-6425 ignition and a msd- 8970 retard. A magnafuel 500 pump running both regulators. And I'm still gonna have locked out timing and a crank trigger. I would love to go with the Msd 6520 and think this is the best dollar for dollar but I need to be able to retard atleast 11 degrees and the 6520 only is capable to retard 9.9 which would work great for your set up. And maybe run a seperate fuel pump for nitrous to avoid a possible lean out. That's my 2 cents.


"RTCP"

Ok, so you have to lock out your timing on the msd- 8970 retard box too. If I am running a fuel safety switch to the solenoids (say set 6 psi) should I really have to worry about a lean condition?

[capogniracing]

Ok, so you have to lock out your timing on the msd- 8970 retard box too. If I am running a fuel safety switch to the solenoids (say set 6 psi) should I really have to worry about a lean condition?

Andy gave me a full lock out dizzy and with a safety switch I would think your good to go. Those clay smith are around 140gph right??


"RTCP"

[jyeager]

Ok, so you have to lock out your timing on the msd- 8970 retard box too. If I am running a fuel safety switch to the solenoids (say set 6 psi) should I really have to worry about a lean condition?

6 lbs is good for the safety switch. Start with retarding 2 degrees for every 50 hp shot of nitrous. That will give you a good base line for tuning. 👍👍👍👍
I don't like using the same fuel pump for both nitrous and motor but that's me. I use a Holley blue for the nitrous side and now a aeromotive with a bypass for the motor side.


Sent from my iPhone using SoCalJetBoats mobile app

[78Southwind]

6 lbs is good for the safety switch. Start with retarding 2 degrees for every 50 hp shot of nitrous. That will give you a good base line for tuning. 👍👍👍👍
I don't like using the same fuel pump for both nitrous and motor but that's me. I use a Holley blue for the nitrous side and now a aeromotive with a bypass for the motor side.


Sent from my iPhone using SoCalJetBoats mobile app

I can see using a separate fuel system for racing but it just doesn't make sense to me for play. If you're running a safety switch then the nitrous won't fire unless you've got good fuel pressure. Maybe I will do some more homework and see what I find. I plan on running 78/78 fuel and nitrous jets with a 6°-8° retard. I am thinking about running one of my gunnel tanks with a mixture of 91/110 and just switch to that tank when I want to run a nitrous pass. Edelbrock says to use 92 octane pump gasoline or better with 175 HP shot.

[jimpen]

That jetting would be real fat.


Sent from my iPhone using SoCal Jet Boats

[78Southwind]

That jetting would be real fat.


Sent from my iPhone using SoCal Jet Boats

That's what came with the kit and what Edelbrock suggests.>>?

[loweryjennifer]

Took the boat off the trailer so we can fix it and prepped the boat for the fiberglass guy, he is coming tomorrow to start it. .


Sent from my iPhone using SoCalJetBoats

[Flusher]

I can see using a separate fuel system for racing but it just doesn't make sense to me for play. If you're running a safety switch then the nitrous won't fire unless you've got good fuel pressure. Maybe I will do some more homework and see what I find. I plan on running 78/78 fuel and nitrous jets with a 6°-8° retard. I am thinking about running one of my gunnel tanks with a mixture of 91/110 and just switch to that tank when I want to run a nitrous pass. Edelbrock says to use 92 octane pump gasoline or better with 175 HP shot.

What about when the fuel pressure drops as the demand increases after the N2O fires?

[jyeager]

That's what came with the kit and what Edelbrock suggests.>>?

I agree. i used the normal squared jetting 2 passes and dumped down the fuel side because it was so fat. It killed my plugs The recomended jetting from Edelbrock and NOS is a fat tune up for sure. Also spark plug gap plays a good role in the tune. 

[78Southwind]

I agree. i used the normal squared jetting 2 passes and dumped down the fuel side because it was so fat. It killed my plugs The recomended jetting from Edelbrock and NOS is a fat tune up for sure. Also spark plug gap plays a good role in the tune. 

Interesting thanks...

[aquaholic72]

just got the bad news phone call from my local machine shop about my new to me rectangle port bbc heads.. looks like ill be taking them out to valley head service soon to see if they can be saved!!!! 

[Tylertjeep73]

What's the bad news ...?

[aquaholic72]

one head is good, the other has 2 chambers with cracks between the seats and one with a crack across the chamber

[socaljst1970]

ugh...been there...  going to repair or replace?   

[Tylertjeep73]

FML!!! Sorry to hear it man

[socaljst1970]

http://shop.whiteperformance.com/BBC-Heads_c49.htm

an option I ended up doing.  they really stood up behind their product when i first thought it failed (before found it was my fault) = good ole southern boys

[aquaholic72]

ugh...been there...  going to repair or replace?   

going to take them out to valley head service in northridge to see what they have to say first.. they're wizards when it come to fixing iron heads. hopefully it wont turn into throw them in the recycle bin situation... gotta love a good craigslist burn from a fellow boater..