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Thanks everyone! Looks like I have a bit of homework to do! Oh, and another thing: the PO installed the Holley 4160 (square bore) directly onto the stock 4v intake (spread bore) with no spacer. I plan on installing a 1/2" phenolic square bore spacer so: 1. the secondaries will fully open (the...

Hi, thanks for the replies! Here's the info that I can recall (I'm currently at work) 1. I have the stock 351c 4v exhaust manifolds on the car 2. The vacuum line for the brake booster is connected to the back of the carb (I think that it supposed to be connected to the vac tree on the back of...

Hi all, I'm new to the forum, looks like a great community in here! I just purchased a somewhat restored '73 Mach 1 351c 2v (now has a Holley 4160 on stock 4v manifold and 4v open chamber heads) Ram Air, A/C, PB, PS, FMX, "Duraspark" single vacuum adv distributor, Red/Ginger std interior. Solid...