stock 340 cam, 9.5 to 1 compression rear gears are whatever the slant had(too high for sure) as it's still got the 7 inch rear end that'll probably blow up if I ever get traction, not a concern with the skinny 14's though. The best part is the fuel injection, it starts quick, idles super smooth, doesnt stink up the garage and tunes itself so I don't have to hear about flooding issues or have to remind a certain someone to push the throttle down and set the choke before starting it up.