I changed the compression and I'm not roundy round racing, so I figured I'd call and find out what a custom grind would look like for my application. Then compare to my current grind. If it's not much different then I'd stick with what I have. If there is quite a discrepancy then I'd probably check with another company and see if their results are the same, if so then I'd opt for a custom grind.


SDG Motorsports
Hellcat Demon and Redeye Supercharger CNC Porting
https://www.sdgmotorsports.com/