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Picked up an Older set of Motorsport A460's from Scott "The Mad Porter" a few months back and on my way back East to the Bash II I dropped them off to have them flowed with Charlie Evans, he did a little rework to the chambers, valves and valve job and here's the results.

Heads = Motorsport A460
Intake Valve = Titanium 2.40 11/32 stem with Back Cut
Exhaust Valve = SS 1.90 11/32 stem
Average Chamber Volumn is around 78cc's

Heads where Hand Ported by an Unknow Shop and the following represents the average Flows.

@28" H2O with a 4.625 bore

Flow I / E

.100 75.6 / 59.0
.200 151.6 / 120.0
.300 234.7 / 158.4
.400 310.0 / 197.3
.500 368.3 / 235.4
.600 413.1 / 267.0
.700 437.0 / 291.6
.750 442.8 / 303.6
.800 445.0 / 313.8
 
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