Holley High Idle
just resently I got the new motor runnin in my car, 355 sbc in an 89 iroc. Its got a Holley 670 street avenger on it, electric chock, vac secondaries. Once the choke comes off itll idle at around 600rpm(stick car). However when I hit the gas the idle will go up to anywhere from 800-1200rpm. I noticed the throttle linkage isnt returning all the way. I adjusted the idle screw so far that its not even touching anymore. I can push on the linkage and the idle will go down to 600 but come back up once I let go. I figured the return spring was too weak so I bought a CSR throttle bracket with double return springs on it. I can get the idle to hold at 600 but the spriings are so tight I can barely press the gas pedal. The problem has to be somewhere else. Everything on the motor is new so I know the carb linkage isnt all gummed up or anything. Anyone got any ideas?
Matt