318 running with low power - dyno

you will see the most ET at the track and seat of the pants improvement by stepping up to a min of 3:73 rear gears. if it were mine i would throw in a set of 3.91's.

Then a better torque converter with a stall speed of 3500+ rpm. This is the last place to skimp on quality. Id call dynamic, ptc, coan for there suggestions.

You could pull the heads and have .020 milled off and gain a little compression but it sounds to me like the heads were ported poorly so it might be better to leave it running and get a set of cores milled and rebuilt and either ported or get a template kit and do yourself. This much work almost warrants you buying a magnum head that is done already.

What is your timing curve like? initial timing? Total timing? at what RPM does it all come in by?