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vacuum secondaries

  1. Engine
    I'm in the beginning stages of building a BBC for my 70 chevelle and I'm not sure which route to take on the Carb. Here's my combo so far: 454 .030 over lunati 60204 Cam TH 350 trans (for now will be replace with another auto trans) 2500-2700 torque conv. (Still undecided) 12 bolt with 3.42's...