Then why go with the small port 302 heads ?
Put larger port 360 heads with 2.02 intake valves and get high compression pistons for the 318. If you want flat 13, its going to have to rev high and needs lots of air flow. Your just holding it back with tiny port 302 heads.
I ran my .030 318 with 2.02 360 heads, just milled the heads .030 and was using stock comp cast pistons, engine made more power everywhere, even at low rpm, over the 318 heads.
Even when the 302 heads were new from the factory, mopar slap the 360 heads on the HP 318 heads for the police, so what does that tell you, lol
