Plan on going elk hunting to Colorado in October. Currently my 2000 TW is 100% stock and runs good here at 900 ft above sea level. We took my dad's 200 cc 4 wheeler a couple of years ago and it wouldn't run good enough to pull a hill with you on it. I want to avoid that with the t-dub. So I assume I only need to change the main jet but to what size? thanks!