How low can you jet the Vmax 4 for say 500 ft snow Drags I'm am currently running 140 mains and stock needle settings, the plugs are still on the dark side not cardboard color the temp 2 morrow is going to be -13 Canadian style
YAMMIEGOD3:16
Active member
andy go to 135 mains. but don,t touch your airbox. leave needle setting alone , you also can up pilots if your drop mains. 3:16 (yammie tony)