What causes sneezing/backfire through the carbs? Most of the time, the backfire is so violent that the engine just stops running.
And the engine keeps on running for a few seconds after turning the ignition key off -- ending with a big wheeeeze.
What's going on?
BTW, I was playing around with the carbs and ignition timing -- I think I've lost my baseline.
Could someone please post the tune-up specs and procedure for a '68 280S?
Thanks in advance,