I purchased a 1964 GTO with a correct 389 that has A/C, PS , PB and a aftermarket 6 speed--I have the engine out and may replace the cam
What size cam can I install without hurting the vacumm for the brakes
Does a 1964 GTO have a different timing cover for a tri-power
What would be a good clutch and pressure plate to go with that holds good and easy to push in
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