302 351 balance 351 vibration
#1
302 351 balance 351 vibration
hi ive got a 1987 f 150 i put a 1994 351 in it with a 1992 aod transmission out of a crown vic 4.6, along with a 1988 351 grand marquis flex plate. it drives and shifts fine but it has a vibration at WOT. cant figure it out, any suggestions????
Thanks
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