400 block 3.90 stroke 4.375 bore 6.76 rod piston comp height is 1.25 0 decked have to run stock heads so i have ported 915 chambers measure 77cc going to roller cam setup with crower cam
int 268 exh is 282 at .050 will go with victor int. and i think a 2 or 2-1/8 header open exh have engine is apart for winter check up and i am planning to install a girdle or go to al. main caps do to the plan of pushing it harder this coming season my heads are o-ringed so milling them would require more work i think how much cr does this need will 11:1 range work ok