When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Would my 212/218 .522/.529 cam see much gain going from stock 241 heads to unported or ported 243 heads? Exhaust manifold is stock with a 2OTL catback.