I used the original heads when I rebuilt mine. I had a local shop polish the chambers and do a little porting. You could also search for a set of #302 casting heads that came on mid 80's 318's with the lean burn system. They have nice ports, hardened seats and a 273 sized combustion chamber that is very efficient. I have a HP version of the engine so I already had the 4 barrel intake but A Stealth or LD4b would work better. I used domed pistons I purchased from Egge Machine and ended up with a pump gas friendly 9.6/1 compression ratio. I used a Isky E-4 cam which is a popular replacement cam for the stock stick. The link to my build is just below. Welcome to FABO. toolmanmike
