I HAVE A 2000 GPR WITH A 13/19, MILLED HEAD, CARBS ADJ WELL,FREE FLOW, NO CAT,AIR INTAKE CHANGED, BUT WONDER IF GOING PUMP LESS WITH THE NEW FORMULA WILL BE BETTER? I RIDE AT 5000 AND 3000 FEET. I HAVE THE SKI SET UP MORE FOR 3000 CAUSE ITS MORE FUN AT 3000. ANY THOUGHTS WOULD BE VERY HELPFUL. THANKS

Dude you are asking a hard one!!!!!!!!!

what lakes do you ride at 3000 and 5000?

I RIDE AT BOYD LAKE IN LOVELAND COLORADO FOR AN AFTER WORK RIDE OR LAKE MCCONAUGHY IN NEBRASKA ON THE WEEKENDS. I WAS THINKING ABOUT THE 100 PILOTS AND 1.5 NEEDLES BUT STOCK 117.5. HIGH ALT. TUNING IS A ***** . I GOT A SET OF STUFFERS AND AMTHINKING ABOUT THE O1 CARB SPACER? I HAVE 105 TO 110 PSI WITH THE SHAVED HEAD AND ONE GASKET OUT OF HEADGASKET AT 5000.