built motor jetting

[rooney]

i i have a 2000 400 ex bored 416 13:1 compression with je ceramic coated piston and a curtis saprks x6 full system nology hotwire and im havvin some trouble getting it to idle the throttle response is perfect but on pump gas with additive it iddles low what do i need for my pilot and main jets that would work the best its needed for hillclimbing

[JOHNDOE83]

Pump gas with additive just isnt gonna work it might but your taking a big risk, You need some real race fuel asap.

I can help you tune your hillclimber but only if you use the right gas....lol.

[drew416ex]

yeah pumpgas with that compression is a big no no.

[rooney]

its pump gas but it is 97 octane where i live its cindave hard to come by race fuel anymore i use to be able to get 112 from my employer and hell cant even do that ne more

[JOHNDOE83]

Try to locate some e85 atleast, or try to find a sunoco near you, some sell race gas vp110.

Theres a thread on here somewhere with a web site to locate e85 try to dig it up.