Re: Help identify this carb, please
If it's the original carb for that engine, it should be a Holley 4180. Also used on the 5.0 HO 83-85. 460's also got them. 600 cfm similar to the 4160 but modified for better economy and emissions. Most noticable differences are "tamper proof" mixture screws and annular discharge boosters on the primary.