1980s Chrysler L-Body
Holley 5220 2barrel, 4cyl engine 2.2L
My stock Holley 5220 has a warped Bowl Cover Assembly - This is the top plate of the carb which includes choke plate, barrels, linkage, and is the part of the carb that connects to the air cleaner. It is warped in a concave fashion along the front of the carburetor, which means it doesn’t seal properly, and I have been having high idle kick-down problems. After replacing the gasket, it is noticeably quieter and smoother, and doesn’t diesel as much. However, since it is warped and the choke plate gets stuck in the barrel - actually digging into or gouging the barrel - I want to fix it.
I have to manually pop the choke lever with a screwdriver when the car is warm. It is an electronically heated spring that opens the choke - after a few minutes of warming the car it should pop open as soon as you touch the gas pedal. It does not. There is resistance to this lever when you push on it, the same amount of resistance felt when the carb is opened up and you manually open and close the choke plate.
My question is this: I have a Holley model 6520 carburetor that I pulled from the scrap yard. Is this a 1:1 drop in replacement? It was pulled from the same model car, though mine is a 5220. Both non-A/C.
If not, and I buy a replacement 5220, how much is it likely to cost to replace it? Doesn’t look like more than 2-3 hours for a skilled mechanic. Heck, I removed the carb in 10 minutes and kept it all intact.