my hot seat pipe for my 97 explorer 400 is on back order and i'm supposed to go out of town riding this weekend. i'm going to try to use my stock pipe but i've had mods done and i don't know what jet to use. it's been bored .020, cyl. trail ported, head milled for 92 octane, carb bored, v-force 2 reeds with spacer,hpd red/yellow primary 10-58 weights, team secondary 120-185 spring, 48-40-33 helix. also since i've allready changed the clutching is it even going to run worth a damn.

 

try www.jetsrus.com they are good people and have alot of kits.

 

I would say somewhere between the 230 stock main and the 260 piped main (most).

Jim