Senior Tech Team
Join Date: Aug 2002
Location: Gold Canyon, AZ
Re: header performance
As stated above, there is a very good possibility that the 2" primary tube headers will out-perform the 2.125" primary tubes that you are now using. Bigger isn't always better when it comes to header tube diameter.
64 Chevelle Malibu Sport Coupe (original owner) car now has 427" BB, Jerico 5-spd. trans., Dana 60 rear end.
SAE Member (25+ years)
ASE Master Certified Engine Machinist
AERA Certified Professional Engine Machinist