How do you adjust the govenor on a holley carb. On 1984 GMC 7000 with 366 V8
Hi I'm Wayne I will try to help you with this Good Morning On the left side of the carb, is the governor housing in the back of it toward the firewall is a L/nut loosen and turn screw in to lower RPMIf you are getting no response from in or out The diaphragm is bad in housing
Experience: worked on, Gmc, Macks, Freight liner,Mercedes Benz,,Ford, sterling