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Discussion Starter · #1 ·
I just swapped a cleaveland for a freshly rebuilt 429 in my 73 and am having some minor to moderate vibration as I rev the engine. This is in park, not driving. Any help would be greatly appreciated.

429, edelbrock performer intake, cam (hydrualic), and 750 carb. Scorpion full roller rockers, msd street fire ignition box, blaster 2 coil, mallory comp 32 distributor, autolite 45 spark plugs gapped at 45.
cylinder compression 180 psi all cylinders
any help would be greatly appreciated
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