I know everyone says get the NAPA kit but hear me out. I bought the AAP kit made by GP Sorensen for $36 first. Nice looking kit with lots of little extras. However, following the 85 FSM I started tearing down the airhorn when I realized that the kit didn't have the diaphragm for the outer vent control valve. I returned the kit to AAP and went to NAPA. They had their NAPA brand kit for $53 and a LOT less parts. I looked at their kit and it didn't have the diaphragm either.

Confused I went back to my FSM and realized something. They don't show the Outer Vent control valve broken down. Why? The diaphragm certianly needs to be replaced with the others. Who has a kit WITH the diaphragm I'm looking for?

PS Both kits were verified by the carb numbers so I'm 100% sure they are the correct kits.