Mike,
Backfires from where? Carb or tailpipe? Backfire out the carb ususally
indicate lean mixture, out the tailpipe, rich.
Good luck,
Charlie B.
>
> Hello All,
>
> My friend has a Mark IV Spitfire that has a single stromberg carb on
> it. The car seems to run ok but when he shuts off the engine, the car
> backfires! I think it might be the carb being set to rich. What do you
> think. It seems to do it more when the car is warmed up, not on a cold
> start and then shut off. Timing, carb adjust, anti-run on......Help?
>
> Mike Brinker....Helping out a friend
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