Good luck finding serviceable 1960-70' Olds heads!
You could of have gotten a 67 #4 330 heads, put larger valves in it, and raised the compression on that 403, and gained some performance.
wow, yea, that very back one was your problem for sure, looking great
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Good luck finding serviceable 1960-70' Olds heads!
You could of have gotten a 67 #4 330 heads, put larger valves in it, and raised the compression on that 403, and gained some performance.
wow, yea, that very back one was your problem for sure, looking great