Re: 496 to be DYNO'D!
Numbers are interesting. I would assume box stock the heads must have flowed less on his bench then AFR advertises? Even same pressure and bore, after the work, they show roughly 12cfm less on the average at every lift point except .200 where the show only 1cfm less.
Lift --- AFR --- Vortec
.200 - 172 --- 171
.300 - 245 --- 233
.400 - 295 --- 281
.500 - 326 --- 317
.550 - 335 --- 328
Regardless of what the flow bench says, your motor makes good power and can't wait to see you bring in a 10 second time slip.
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------Motor---------------Bottle
60'---1.53---------------1.41
1/8---6.58 @ 105.92----5.87 @ 118.41
1/4---10.38 @ 126.97----9.24 @ 142.49
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