intergrated j 78
I only flow test my own heads and have not dealt with any of the porting shop. I am sorry I have not had your cylinder head on the flow bench. Of the six cylinder heads that I have tested SISSELLS AUTOMOTIVE stuff is the class of the field. They may have the flow numbers you seek. 805 499 7077 They have the experience and a lot of Bonneville racers are using their stuff.
GOOD LUCK
