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stay away from patriot for 1, afr make the best street bolt on head, stock heads on a 383 is def. gonna choke performance. without knowing what rpm range u want to spin and without knowing cam size, intake, injector size, exhaust system, compression,etc...etc..etc... i cant tell u which head is best. although i can tell u that on a 406 with 195's they can make 550hp+ on pump gas. and excellent street ability. u can pm me for more details if needed.
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TMR performance
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