bkm_rx7

OK...like the title says...i just went back to the stock carb and intake...the car starts just fine right now...but when i turn it on it revvs like a mother! wtf...i tried disconnecting the throttle and messing with the idle screw...and it STILL goes nuckin futz...what would cause this??? Ill admit that i dont have all the vacuum lines properly blockd...but i highly doubt this would cause the throttle to stick (even tho its not physically sticking) and revv so goddamned high.

jayroc

Is this on the stock carb you're using now, or a previous one?
The problem is very likely that your throttle is not returning all the way. Recheck your return spring, and/or make it stronger. Even 1-2mm not returning to dead stop will cause a 4-5k idle.. At least on the weber I used to have it did that.

Latin270

Are all your vacuum lines connected correctly? Check that before messing with it any further.

bkm_rx7

Thats the big problem...i took out the rats nest a long time ago...then installed my RB intake and Holley carb...and now im tryin to revert back to the stock carb due to TERRIBLE gas mileage (lucky to get 10mpg). So i probably dont have all the lines blocked off correctly...but i still highly doubt that would make it revv all the way up to 7 grand...

calvinpaul

iTrader: (2)

Ummm, the holley shouldn't get that bad on a stock motor unless you floor it at all times or your jetting was waaaaaaay rich.

Latin270

Thats true I got close to stock mpg with my Holley set up, unless I punched it. Keep checking those vac. lines!

bkm_rx7

Should have said its a 600cfm holley...not the RB holley...its WAY too big for this motor and i have to run it rich or it will choke itself...hence the bad gas mileage...the holley is gonna go onto a 12a 1/2 BP in a while..but i was hopin i could get better gas mileage til then.

Rx7carl

Back out the idle speed screw. You do know theres an idle mixture, AND an idle speed screw right?

bkm_rx7

*shrugs* i give up...guess that 12a 1/2 BP is goin in ASAP with the holley setup