Hey yall i was just wonderin if blackjack headers are any good in yall experinces. Also i got 650Holly carb, Edlebrock performer intake, blackjack headers wit 2.5" exhaust w/o cats and with flomaster mufflers, how much increase of hp will this give me?

 

They are made by Mr. Gasket Company. It's a lower priced header that seems to work pretty well for the money.

 

I would go with the Hooker compition headers they have been good headers for years.

 

Probably the best period for the money are the Hooker Competition Series.