Forced induction fuel system

I've used both the boost ref mech pump and a return regulator setup with a GSL-392 on my carbed slant .

Boost referenced mech pump had a tendency to stop flowing ANY fuel when the boost got to 8 psi...bad news.
If you try it...just make sure it's referenced from the carb hat and NOT the turbo housing. I'm not so sure the mech pump would keep up with the volume of what a boosted v8 needs though...but there are plenty of on-line calculators for flow for x amount of HP that should answer that question.

I run a mallory 4309 return regulator with the walbro now with good results. The walbro is pretty quiet ( just a mild whine ). I can still hear it over my /6 at idle, but not at all while moving :lol:
I have the fuel pressure set at 7psi base so it pumps most of the fuel through the return most of the time.