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post #3 of (permalink) Old Apr 15th, 19, 1:24 PM
bracketchev1221
Senior Tech Team
 
Join Date: Dec 2005
Location: Lancaster, PA
Posts: 11,219
Re: Fuel system setup question.

Quote:
Originally Posted by Calculated Risk View Post
Typically you go 100 micron before the pump and 40 micron or smaller after the pump.

-10 to the regulator won't cost much more and will ensure plenty of room to grow. -8 as a return from the bypass regulator is fine. But -8 to and from the regulator will work just as well.

-8 to the bowls is fine, really -6 is fine. The flow through a single .150 needle and seat is much smaller than the -6 line itself.
I agree with all of this. 10 doesn't cost much more than 8, but 8 would work on a street car. I ran #10 to the regulator and 8's to the carb though 6's will work there as well due to the small flow. My car made almost 1000 hp on that setup as well.

Ray

Best pass 8.87 at 150.98 1.212 60'. Sold 3/2018

1970 SS 396 project in progress. Bought 5/2018
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