Hey,
I was wondering if anyone that has a zz502 has tried 1.8 roller rockers, I plan on changing cams over the winter, and was wondering for now if they
help at all. thinking of going with scorpion brand? anyone have any experience?

I know Wes Colby has done that on his 502. And with the stock cam it made some crazy power. You could try giving him an email or something.

I put harlan 1.8's on and really cant verify if they helped or not. They were put on when I was still dialing in the car. They look better though!

I replaced the cam with a little bigger one and THAT really woke it up.

Lee