318 low budget heads change

The 302 heads where designed for smog not performance there's is potential there but $$$ and time has to be spent on them. Theres no performance bump when the factory switch to 302's the only performance bumps for 318 were the factory 360 top ended 318's and Magnums and since cr and cams basically been the same for the total production of 318 the extra power came from the heads. The only application I could see spending money on 302's is a 273 build cause of valve size.

Just go with cam headers and 4bbl will get you high 200 hp, enough horsepower until you get your 360 done.