318 head flow

It seems that SF-1020’s generally show lower numbers than the 600’s.

I don’t really care if mine is a heartbreaker or not, as long as the numbers are at least “reasonable”.

I think my bench is fairly middle-of-the-road for what the numbers are.
Once in a while my numbers are slightly higher, sometimes really close, and sometimes(well, most times) a bit lower.

Two heads I tested recently that came with flow data ...... my numbers were about 5 higher on the intake side of one head, and on another set of “big” aftermarket Pontiac heads my numbers were 10-15 lower.