mine is 355 4 bolt 74 block, scat crank, stock rods, 9.5 speed pros, world products sportsman 2 heads, comp cams 520,540 lift cam (solid),prof prod cross wind manifold,roller rockers, msd e curve dist, 600 dp holley. so far 11.99 in full weight 74 z very sim to what you got goin on
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