OK, installed my new Street Avenger 670 yesterday, finally got all the fuel lines not to leak. Fuel pressure is at 7psi. Floats are adjusted properly right below site glass. The problem is that it is idling at 1200-1500 rpm's and i cant get it to go lower. I have the idle screw backed out all the way. i made sure the linkage isnt sticking, i even disconnected the throttle rod to no avail. i dont have the choke connected so its not that. i tried getting it off of fast idle by revving quick, didnt work. even after a 20 minute test drive, it was idling at 1500 rpm's. if i disconnect the vacuum advance line, it idles down to around 1000, but that is still real high considering the base timing is now at 8' and the idle screw is all the way out. i figure its just reving to 1500 because its advancing the timing to 30'. what else could it be? i love holleys once u get them working right, but this is just annoying. like i said, i dont really suspect a vacuum leak since the test drive went great, the car was strong except for this pesky idle problem.