Performer RPM
I'm looking for a new set of head on my 351 windsor, i currently have 1969 heads and they are my bottleneck, I made 350 hp on motor and 430 hp on a 125 hp nitrous shot. I was thinkinh about the performer rpm because they are relatively cheap to buy. How much hp will I gain with those heads, I have a performer rpm intake, 9.5:1 compression.
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