I have a 347 with a X303 cam. My heads are reworked 351W with the 1.6 and 2.02 valves. How much more could I expect to get out of my engine with AFR 185 heads?
I have a 347 with a X303 cam. My heads are reworked 351W with the 1.6 and 2.02 valves. How much more could I expect to get out of my engine with AFR 185 heads?