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**Fbks_Cruiser** · 06-07-2018, 10:08 PM

Okay. If idle speed screw is not contacting, but idle is still at 1700 rpm. Check throttle plates in carb. Are they partly open? If so there is binding in the throttle linkage not allowing them to close even though idle speed screw is backed out.

06-07-2018, 10:08 PM	#12
Fbks_Cruiser Senior Member Join Date: Apr 2016 Location: Fairbanks, AK Posts: 339	Re: 350 Tuning Issue Okay. If idle speed screw is not contacting, but idle is still at 1700 rpm. Check throttle plates in carb. Are they partly open? If so there is binding in the throttle linkage not allowing them to close even though idle speed screw is backed out. __________________ 1972 GMC K2500 Super Custom Matt