Speedmaster Small block porting tips and results Part 1
Surprise again unworked exhaust chamber
.100——-34
.200——-95
.300——135
.400——159
.500——172
.600——179
.700——181
Just a little bit noisy but never backed up. Early on in this post I said I hated to even waste my time flowing the exhaust ports because of the big divot in each exhaust port under the seat. Well guess what guys I think it was intentional by Speedmaster. It made me dig in my stash and drag out an Edelbrock Head that was unmodified. What a bunch of crap. This is the divot on the Speedmaster heads. The shortside is as smooth as a babies butt and nicely rounded. Finger approved.
.100——-34
.200——-95
.300——135
.400——159
.500——172
.600——179
.700——181
Just a little bit noisy but never backed up. Early on in this post I said I hated to even waste my time flowing the exhaust ports because of the big divot in each exhaust port under the seat. Well guess what guys I think it was intentional by Speedmaster. It made me dig in my stash and drag out an Edelbrock Head that was unmodified. What a bunch of crap. This is the divot on the Speedmaster heads. The shortside is as smooth as a babies butt and nicely rounded. Finger approved.