318 build #2 "cost minded" for the '74 Duster

Just my two cents, but I would run the magnum heads all else being equal. Stock form you get the flow of the old J heads with better velocity, and the closed chamber like the 302's to keep compression up. Best of both worlds for a street 318.
Or 920's from a late 66 and 67. Those could really use some bigger valves. and bigger ports and some bowl work done, and.................

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