Not Ranked
I have used very sucessfully the performer RPM heads on 418 stroked 351w's to make over 500 hp. I like them better (after porting) than the vic jr's which kill low end. Never used the regular performer heads though.
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In a fit of 16 year old genius, I looked down through the carb while cranking it to see if fuel was flowing, and it was. Flowing straight up in a vapor cloud, around my head, on fire.
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