How many horsepower should I have?

Hey all, I was wondering what your opinions were as far as how much horsepower my wr is putting out. Here's the list: Athena 290 big bore kit, hot cams (cam timing set to yz250f setting), fmf 4.1 full exhaust, ignition switched to yzf (grey wire) carb jetted and tuned, airbox open, ais removed, throttle stop removed, and All types of other stuff that doesn't affect the motor. Anyone have a baseline as far as horsepower? It sure feels like a lot! Any advise will be great!


depends on whose dyno you jump on.


without the proper head porting a 290 doesnt make the biggest of numbers.




they make a lot of torque (what you feel) and that is what really counts.

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