After checking into how a few people were porting their exhaust I decided to do mine, then my roommate decided to do his. Mine isn't running right now, but his is and when he tried it out there was a noticeable difference in performance.
I don't know about the whole 1/2hp gain cause I don't have any way to prove it, but the usual hesitation and response seemed to be eliminated.
A def do for just the sake of bein easy on your motor. Just sayin
I was gonna port the intake, but the mouth of the motor is bugger than the intake tube. Would there be a change if I did the intake tube as well since the tube all the way to the carb is still gonna be the same diameter?