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Old 08-12-2018, 12:34 PM   #11
Pontiac1976
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Join Date: Oct 2015
Location: Ottawa, Ontario, Canada
Posts: 780
Re: Vibration under acceleration, troubleshooting

Does your 76 have HEI in now or points.
Maybe check the points and gap them if needed.( clean if that all they need or replace)
after doing might be good to check timing.
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1977 REG cab Long Bed with a 1984 Front Clip, 82 305 .60 over 9.0.1 flat top pistons, 4bbl, TH350, w/84 SS-intake & cam , w/ 1977 big block rad, 1975 gear box, 1984 master w/ metric fittings top & SAE fitting @ portion block, 1975 3.42 gear open diff. Duel 77-87 Factory air cleaner, duel inlet from rad support . Down sized 9' to new 8' Steel flat bed
Was a 77 454 w/308 gear. Taken out 550 lbs. up front with motor clip change.
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