elarson
New member
Good Afternoon from Nebraska. I have a '64 GTO sedan that I have owned for nearly 40 years. I am on a mission to upgrade the .030 over 455/tri-power. The heads are off a 400 C.I. with smaller intake and exhaust valves. Too much compression 10.75. Tri-power is O.K. but won't allow decent HEI. 4:10 12 bolt posi. I'm thinking 3.73 gears and EFI on new intake. .480 lift comp Energizer cam. Turbo 400 with 3000 RPM stall. I want to find a good set of heads. 8.5 compression (455) seems silly to spend a fortune on aluminum heads. Car is down on power because it isn't getting the fuel pressure it needs. I don't want to conquer the world racing, but I don't want to baby this thing around to avoid death rattle detonation. Car would be driven to car shows on back roads @ 60 m.p.h., do a few burnouts, run down the track occasionally. Any thoughts or suggestions would be appreciated.