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.
From: Leeds - It was 562.4bhp@28psi on Optimax, How much closer to 600 with race fuel and a bigger turbo?
if no luck, Im sure there are some adjustable linkages about, harvey may know of some for the 5spd, as I believe the JW racing product was a copy of a design of his