Join Date: Oct 2011
The 57 in your CVO actually needs a tick more compression to optimze it's ability.
At 10.0 cr, you will still
have less ccp than the current heat-producing 255 cam, but more power accross the rpm band.
Some of the "noise" in those is caused by the intense valve spring
pressure created by the Comp Cam(HD-s vendor)springs.
An AV&V beehive would tame that, for example.
With the use of an S&S lifter(vs the imported lifters)and loading the lifter to .140" via a good quality pushrod, such as from S&S, you'll have more power, quieter operation, and much reduced heat once tuned.
Probably not what you wanted to hear, but if this path is followed, it will operate and perform with ease.