it pulls like hell as it hits 3 grand.. it sounds great when it wants to idle.. it kinda goes off on its own then come back to the rythm... under a load it'll stay steady but thats kinda hard to do with a stick...lol i may run a hotter plug just running the AC's rapid fires in the cr43ts heat range..i find they work well but foul really easily so i may be changing them...i tried leaning air mixture screws but the plugs are still on the black side making me think thats why it wont idle right...it seems to work great down the road but idleing its very stubborn...i'm running a afb competition series... i looked at the new barry grant carbs(demon)and i like the air screws built in to adjust for a lumpy cam easily....any suggestions??