We did some mock up this past weekend.

Piston to Valve
.075 intake
.115 exhaust

My Apaches are 71.5 CC

Compression appears to be 13.5:1 based on our calculations, should work fine on E85.


-Dustin
67 Dart, 9 second, 392" G3 Hemi
68 Barracuda 340 F/SA