Have you confirmed that the spark plug wires are attached in the correct
firing order, and all are functioning? It might idle on 3 cylinders, but
revving it floods the exhaust with fuel. Just a guess...
RETWIZBANG@aol.com had this to say:
>I've been patiently trying to get a 1969 MGB to run for about a month. So
>far, I have cleaned and sealed the gas tank, installed all new fuel hoses,
>filter, tune-up, and I switched the Weber which came with the car for
>original SU dual carbs. I have the same symptoms as before - BACKFIRE -
>through the exhaust and carbs. The car idles fine, but as soon as I rev, it
>backfires like crazy - the mothers grab their youngns for fear of a drive-by
>shooting (automatic weapons fire). Any clues? Thanks.
>
>Rich Townsend
>Manassas, VA
>69 MGB
>75 TR6
>
--
Max Heim
'66 MGB GHN3L76149
If you're near Mountain View, CA,
it's the red one with the silver bootlid.
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