I cut my cylinder heads down to 62 CC which allowed me to use a very small dome to get 15 to 1 compression. that seems to work pretty good.I think the dome is only about. 0.080 high.

Last edited by gregsdart; 10/19/15 09:12 PM.
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky