My boyfriend wanted to give you a few suggestions.

Balance and blueprint all moving parts.
Freeze-dry them (cryogenics)all internal moving parts.
Index and torque all spark plugs so your gap is pointed down at your piston head.
Get an external oil cooler, cold ram air induction, aluminum torque converter, aluminum flywheel and aluminum drive shaft.
Put an external fluid cooler onto your rear axle. The results will show for every 11 degrees temperature drop on your fluids, you will gain a 1 percent combined horsepower.
This is just for starters.

He encourages you to reply to me at my email address dfs1971 AT aol DOT com. He has more he could tell you, if you would like to know. He is a 455 nut and 500s CID engines.

Debra