Hot Rod - - Nostalgia Stealth Bomber -

Af­ter lay­ing all the parts out and get­ting ev­ery­thing we needed or­dered ahead of time, we split the project up into two

days of work: re­plumb the fuel sys­tem up to the reg­u­la­tor first, then spend the next day bolt­ing down the new Terminator Stealth throt­tle-body and run­ning its wir­ing. Dale’s orig­i­nal setup used a 10-gal­lon fuel cell to feed a Hol­ley Black pump, a carb-friendly 14-psi, 140-gph unit that strained fuel clean through a Se­ries 140 Mal­lory Comp-Fil­ter.

We re­moved the pump, fil­ter, and as­so­ci­ated feed lines from the tank, but left the ex­ist­ing -8 feed line to the reg­u­la­tor. From here, we also ran our -8 re­turn line par­al­lel to the feed and simply plumbed it into one of the top ports of our fuel cell with a bulk­head adapter fit­ting, us­ing a 1-foot length of fuel line to rein­tro­duce fuel at the bot­tom of the tank. It’s im­por­tant to plumb your in­ter­nal re­turn to the bot­tom of the fuel cell, as cre­at­ing any kind of wa­ter­fall ef­fect breeds cav­i­ta­tion prob­lems from the aer­a­tion of fuel. This is a big cause of pump fail­ure or other star­va­tion is­sues, so take the time to do it right.

Ul­ti­mately, this rout­ing is unique to each project, but there are a few best prac­tices to keep in mind. The most di­rect path is not al­ways the best, so be sure to avoid high-heat ar­eas and be mind­ful of sus­pen­sion move­ment. Most im­por­tantly, be sure to place the pump level to or just be­low the low­est point of

[ This vac­uum port low­ers fuel pres­sure at idle to give the in­jec­tors finer con­trol while pre­emp­tively bump­ing pres­sure when vac­uum drops at wide open. Set your 43 psi at the reg­u­la­tor with this line dis­con­nected.

[ Don’t for­get to clean your braided hose af­ter trim­ming to en­sure de­bris stays out of the fuel sys­tem.

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