HI Jazzmin, you didn`t mention which 396 engine you had 325, 350, 375 HP. But if you have the original carb, why don`t you just have it rebuilt and use it. If it is 375HP motor, they came with a holley 780 single pump, duel feed, and vac secondaries.
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BILL TIRELLI TEAM CHEVELLE MEMBER#280 1969 BLK CHEVELLE SS396 375HP 4SP 410 POSI
STATEN ISLAND NY