Speedmaster Small block porting tips and results Part 1

Ok now numbers as they came right after the valve job. Like usual good and bad results and I will be doing some seat blending and a few other changes later down the road but was to curious to set them on the shelf with flow testing them. I could hear stalling at .500 and checked some airspeed. Pinch was perfect. Shortside needs some work as it was to fast in the 400fps area. These will now easily go over 300cfm after that is addressed. Low numbers took a hit needing the 60 degree edge smoothed and a better 15 degree top angle.

.100——-59
.200——-127
.300——-191
.400——-245
.450——-263
.500——-272—-fast shortside
.550——-278
.600——-286
.650——-291
.700——-293
.750——-296