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Originally Posted by chevelle13
i have a 377 and i spray it i have made a 427 406 and a 434 the 434 makes the most power but when sprayed the 377 out preforms the others i ran 250 shot to all made 6.90 pass in the 8th with the 406 a 6.72 pass with the 427 a 6.28 pass with the 434 and a 6.19 pass with the 377 . i shift it at 7800 rpm and have a 3255 lb 1970 chevelle so i like the 377 over all combos but for just motor i would build a 434 or 427 with the 400 block but if spraying go with the 377
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that's probably a result of excessive tire spin... getting better times with less power usually means there's a problem somewhere in the suspension or tires.