Just another idea - if the cam timing was off, could that screw up the mixture?
I find this unlikely - afterall, the car does run - but it is something that
has me worried. It seems unlikely that the cam timing could be screwed up -
there is virtually no adjustment on a Midget (1500, at least), you just line
up the timing marks on the timing gears and bolt the gear to the cam with 2
bolts. I would sleep a lot better knowing the cam timing is not the cause
of these problems (I could believe not running if the cam was wrong, but why
would it affect the mixture? I still think the carb is the culprit...)