So let me see if I'm understanding that correctly Paul, you're
saying that a dual exhaust with a set of Fenton Headers will
give you an average of 20% in crease in horse power?
Boy, that's a surprise to me, I never saw the with them and the
glass packs on my '60 Chevy Biscayne back in '63. Don't know
how much more HP it made but it sure did make a lot more noise.
Denny G
Well I did say 15-30%, but I hope you guys realize that on an advertised 105hp motor (stock) that's only about 15 to 30hp increase? The Corvette the same year had an advertised 155hp with a similar setup to what I have.
The sixes were notorious for poor breathing. Headers and exhaust would do wonders for them, especially if you improved the intake side as well.