From summit:
http://store.summitracing.com/produc...earchtype=ecat
Holly description and pics:
http://www.holley.com/HiOctn/ProdLin...T/PrplHrn.html
but remember, wehn u bolt them straight up to your headers, its going to put that much more stress on the headerpipes. The weight of the glasspacks will be pulling on the headers, and over bumps they will pull harder, maybe even scrape the ground if they are low enough.
Make sure u tighten the bolts down plenty. Dont want to lose one anywhere
Tom