4mil dune jetting

[yamahaman244]

Hey guys have a trip planned for little sahara this coming week. Im jetted pretty close to spot on according to my piston wash at 75 degrees. The weather there looks to be 45-65 degrees during the day there. Im wondering how much I should jet up. I really don't wanna burn down my motor out there.

Mods are

4mil long rod, HJR dune hillshoot port , ported cases, 185-190 compression/straight 110 fuel,  +6 timing, vforce 4 reeds, Cpi inframes, 35 pwk carbs with pods.

jetting is 155 main, 50 pilot I believe and needle is one notch up from middle position.

Just bring a couple bigger mains and be good?

 

 

[gusto]

I think you’ll be good good as long as it’s not a massive elevation change.