Im 8 up 10 back to tank with reg after the carb. Mallory 140 with their regulator. Been running this setup on past 2 cars for 15 years. No other way I would do it This is the correct way to do it. Return should be larger than the feed , reg before the carb . This is how mine is done and as prescribed Magna. Aeromotive doesn't agree w/ this. Not saying one is better than the other, just pointing this out. When I designed my system I called them to make sure I was on the right track. They recommended a -10 feed and -8 return. On the street you need the fuel circulating from the carb back to the tank. The short returns from the bigger pumps back at the tank won't work real well on the street. That long stretch of fuel the length of the car needs to circulate to keep it cool.
CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
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