I have a stage 2 boat minus the head turning a speedfreaks 14/20 depitched.

I was wondering if a Riva pump gas head (150psi) will bring my rev's up or down? I am still waiting for the heads in the mail and was just curious??

Thanks...a.j

My experience was that the rev's stayed the same but you get there much faster.

You may see a rise in rpms due to more torque, with LESS deto, with the higher compression head.

Head is great for performance

I gained 50 RPM when I added my Riva milled OEM pump gas head.

Efreak
I friend I ride with that has the 14/20 island depitched and picked up rpms after he installed a pump gas compression head on his GPR. I believe he is now running 7080 max rpm with the top loader, riva plate-skegs removed, sponsons stepped and Riva trim tabs. His 02 GPR runs strong and he is very satisfied from the change that the compression provided on his ski. I am fairly sure he increased 75 to 100 rpm after the install.

Thanks guys. I need to find about 100 rpms some where so i hope it will help..