MAKE SHURE YOUR USEING 110. WITH AAEN RACE PIPES ON A 77 SRX WITH .44, I BELIEVE STOCK WINTER JETTING WAS LIKE 510. WE TOOK THEM DOWN TO AROUND 430. FOR GRASS I WOULD DROP TO AROUND 380. WATCH PLUGS AND WASH. HAVE TO DROP DOWN SLOWLY HERE. 3:16 (yammie tony)