I bought hauck (simons cpr) pipes :D How are they on gas mileage and trail ridin

My jetting is fat as i used to ride in below zero quite often(150 mains, 47.5 pilots, needles in 4th groove fuel screws at 1.75 turns out) and i get 9-10 right now. Just talked to Jeff @ CPR this morning and he said unless you're running in below zero temps to change to (150 mains, 45 pliots, needles stock "3rd groove" and fuel screw at 2.0 turns out) and that should be good to zero degrees. he said you should then get around 12mpg consistantly. I'll probably make the changes this weekend being it's 40 ****ing degrees again for the 3rd day. they make an awesome difference as long as you're clutched for 8900-9100 rpm's, they rip!!!!!
 
Ight thanks i got the cluch kit coming from hauck made for the pipes... and the guy who i bought them from gave me the carbs that Jeff set for them..
 
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