C10 Fuel System

[eric8]

I have a 72 C10 pickup that I am eventually going to drop a GMPP LS3 in. I am approaching this swap in stages, as this truck is my daily driver and I want to keep the down time as minimal as possible. Once the time comes for the actual engine transplant, I would like to be down for no more than a week or two max, therefore I am handling the fuel system ahead of time.

Here's my question. I'm running a 750 cfm carb on a 350 SBC at this time. I want to go ahead and buy a Rick's custom fuel tank with an LS3 factory in tank pump already mounted, and plumb that into a factory corvette filter/regulator. From there, temporarily, I want to run fuel line to support my carb for the time being. What's the best way to do the fuel system coming from the Vette regulator to work with my carb? It is my understanding that both the carb as well as the LS3 fuel systems are returnless, correct? Dropping down from the 60psi to carb pressure will be a big drop I know. Can it be done and how?

Or even better, how about ditching the idea of the corvette filter/regulator altogether and suggest a filter/regulator with a return that would run my carb for now, but also be an optimum way to regulate/filter the LS3 FI in the future? Cost would be no object, so throw your ideas out there for regulators!

[pl4yboy]

The vette regulator will not drop down that far iirc. Look into aeromotive.

[eric8]

Correct...I believe the vette regulator/filter is set at 55 or 60 psi. I was wondering if it is possible to have a regulator after that but before the carburetor, or is it simply impossible/bad idea to do 2 regulators in series like that?

[ecld_07]

You could do it like that...but you'd have a return from each regulator directly to tank as returns. Why not just run one and be done

[eric8]

I wouldn't mind doing that for sure. I just know all the LS swap guides rave about the factory OEM vette regulator/filter/all-in-one deal as being a great part. If there is something else out there high quality and capable of dropping the pressure down that far without blowing out or burning something up, then I'll happily use it! Aeromotive regulator maybe?

[ecld_07]

What psi overall are you wanting? I use aeromotive on mine and has worked flawless over last few years

[eric8]

Standard carb pressure, around 6 psi I believe. Do you have a model number of the one you have been using? Thanks!

[eric8]

Think I've found a solution. Overkill? Maybe. But I don't think I can go wrong with this baby! http://www.jegs.com/i/Aeromotive/027/13204/10002/-1

[ecld_07]

I use http://www.jegs.com/i/Aeromotive/027/13110/10002/-1. But the one you posted looks just fine. And will be way less ghetto then multiple regulators

[96/chevy/pu]

Eric the one you posted is 3 to 15 pounds and will work fine for the carb, but will have to be changed when you go fuel injected.