hmf jetting ... help please!

[Jessem24]

i have a stock header, air filter and i have the lid on. i got a hmf sport series slip on and there website suggest 165/170 for the main from the 148 stock. is this true? im also at 700ft elevation, there at 900ft

[katch26]

that sounds like what it would be with the lid off

[BossHogg420]

they gave me a 152 for the sport with the lid off. it runs perfect at 1000 ft all the way up to 7000 ft i reccommend the 152

[Jessem24]

i see you have the sparks key, would tat affect it in any way?