Speedmaster Small block porting tips and results Part 1

just to help a little
these are PBR out of the box####

I finally bolted one of my heads down on the flowbench today and got some numbers. I bought mine bare so these numbers are with one used Edelbrock exhaust valve and one used 2.02 Edelbrock intake valve with a 30 degree backcut added. Other than that as out of box

.100——55
.200——131
.300——185
.400——-235
.450——-247
.500——-240. Numbers backing up
.600——-246
.700——-256-262 turbulence
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and these are afterwards.


.100———-68 cfm
.200———-142
.300———-198
.400———-244
.500———-252
.600———-262
.700———-262
.750———-258