[vettestr]

Well great info already from the group and here is my 2 cents to try and help. With your cam and exhaust system combined with your low static CR the most compatible type would be. Try a small runner volume like in range of 160 to max of 180 CC's. A crushed head gasket height of 0.041 and piston will be about 20 to 0.040 down the hole so 64 CC vol. head or even the 55 CC head will bring up the final CR. The 50 CC heads for sure if the aluminum heads are in budget. Stay with smaller intake valve diameter or smaller to keep signal strong = 0.194 and 0.160 Ex.
Do some simple intake gasket matching and open roof and last 1/2 inch of Ex. up to help a bunch. If not experienced stay away from porting as you can hurt them easy. Use a dual plane intake manifold and try smaller runners here also. Play with carb spacers to shore up the small intake and GIVE HER TIMING until she rattles and back off 3 degrees and lock it down. Try static of 18 degrees with mechanical in by 2500 RPM to a total of 38 degrees. It will take a 780 CFM carb if vac sec. and small intake runners to retain airflow speed/signal.
Good set of used Dart iron eagle or the smallest Pro 1 alum heads will do the job.