Originally Posted by zipper06

I wouldn't port them, if any porting is done, do it on the exhaust side and make sure you have some big headers(prefferably) zoomies min. 2 1/4" to 2 3/8", you can't put it in unless you can get it out. I run 2 1/4" zoomies on a sm/blk, with track 1 heads.

JMO

Zip.