Originally Posted by Rooskey

That sucks cause they probably could have made more power by phasing the exhaust cams instead of the intake by holding in more compression in the lower rpms (advancing the cam) and blowing more compression out on the top end (retarding the cam) giving alot wider power band with more average horsepower and torque gains. BTW you cant adjust lift because thats grinded into the cam and will always be static. Only way to gain lift is to change rocker arms on a pushrod engine. Also lift really dont make a crap anyways the things that matter most are duration and lobe seperation aka centerline. Basically the only thing the vvel does is act as an automated computer controlled cam timing gear which will only change your power band. So this being said the vvel can only give you what your stock cam can provide on both the low and top end which is a very nice thing to have, but dont expect much from someone cracking the vvel. The down side is that if someone trying to tune the vvel that does not have much experience and does not know the limitations will run a great risk of running into piston to valve clearance problems especially with aftermarket camshafts.