Rocker Arm question...

The Motorsport because they are cheaper. Roller rockers are roller rockers. They hardly every fail anyway. A lot of people swear by the Scorpion rockers, but I don't think it makes a difference. On my last car I got a set of Omega Gear rockers from god knows where because they were the cheapest. On this car I got a set of Dove NASCAR grade rockers that cost a pretty penny. I can't tell the difference.

Kurt
 
I'm still running stock 1.7 cobra rockers with my setup and haven't had any issues. I'll be getting new ones when i get new heads but i can't imagine that it makes that much of a difference in the long run. I'd have to go with Kurt on this one, cheaper is better.