i hav a 1985 z24 that is running like crap!!!! idle is very erratic,,,,fuel filter is new....i worked on it awile back and found the little plastic choke vaccum linkage broke..i put it back together with jb weld,,and now its broke agian!!! any ideas??? sometimes wont idle at all,,,and dies between gears to...the muffler has been removed,,,would low back pressure cause this??? any help is appreciated!!! :blink: