Anyone know what PN is the canister for an 85 K20? Mine was pretty shot - cant find it anyways and know I needed a new one. I've seen some that would work - had the same ports on it - but have heard the diameters can be different and wont fit in the bracket then. I also know GM discontinued about all of them but they do surface from time to time. Also....since I'm going from an 85 carb setup to EFI, would the canister I need change? Thanks.