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Originally Posted by bigjimzlll
they were heads made for a 305. The only thing that makes them increase performance is the 60cc chamber(increased C/R) but they don't/wont flow enuff to satisfy a 350.
354434.....75-79...262/267/305...60cc chambers
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i agree, buy the time you spent the money porting them out to get the flow you need for a good performace setup you could have just bought a good set of protopline or dart performace heads that will be better than those heads if they were ported. i think protopline is the bang for the buck.
http://www.protopline.com/wheretobuy.htm