We run dirt track unlike everyone else no chebby running 71 lemans with 77 sbo 350 motor has new bearings and rings im stuck on what heads to run i have a set of j heads
And also a set of 80 350 dont remember what they are i was thinking j heads to get better flow as with the last car ford we turned around 5600 to 6200 at the end of the straight aways not familiar with the old family so any help will be appreciated

 

Just a old racecar





Motor rules have to run hollet 4412 500cfm