Stealth, RPM, 906 heads

So while testing the EZ exhaust, we drug out the Edelbrock Performer RPM head and tested the exhaust on that head.

1st column, RPM box stock flows as listed by Edelbrock. 2nd column, box stock as tested w/o tube. 3rd column, box stock as tested with 2" tube. 4th column, ported and tested w/ 2" tube.


.100"......70.......59.......61......65
.200".....126.....108.....117.....151
.300".....160.....151.....165.....192
.400".....188.....176.....198.....229
.500".....206.....190.....221.....253
.600".....217.....197.....234.....271
.700".....223.....203.....243.....283

There wasn't any time to do anything other than one quick exhaust port, I've got to finish the EZ heads.