just sonic the block first..
i have factory 72 360 block bored.040 ,factory crank and polished factory rods..
light pistons and balanced assy. no filler and stock caps...line bored..
running 6.67 at 3410lbs.built this motor in o4


365" Iron J heads,,3480lbs best 1.39 60ft on SS springs.10.54,124 mph ...6.67 1/8th et.average 60fts 1.46 w/ small cam &.063 no2 pill tagged & insured
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