.5mm is a 5.1% increase in lift (9.8mm max lift - all Duratec cams)

A 9.2% increase including rocker ratio.

That's huge on a multiple overhead cammed engine. In my opinion...

Including the tight clearance tolerances it may be the limit as well???


2000 SVT #674 - Check it out!

Whoever coined the phrase; "If it ain't broke; don't fix it" ~ Just doesn't get it...