> Well I got my new timing chain installed and the engine is running, but I
> have a timing or tuning problem that I can't seem to solve.
>
> The car idles well at 800rpm, timing set to 17.5, dwell at 51, point gap at
>
> .016 (new points). When I go to accelerate, I get a backfire through the
> carb and then the engine, evening though it will rev, has no power.
Double check your cam timing. Make sure you are not a tooth off.
>
> This is a 68-2000, U-20, SU's, pre-smog distributor, smog head.
>
> My carbs are probably shot, I'm thinking vacuum leaks through the throttle
> bodies, but I was able to get it tuned and have power before the new chain.
>
> The carbs run very rich and I can smell gasoline sometimes (although no
> apparent leaks).
>
> I've checked the valves, they are set at 008 and 012.
>
> Any ideas from the experts?
>
> When tuning the carbs and setting the timing, should I plug the vacuum
> advance hose going to the distributor? (I always have) Also, should I
> plug
> the vacuum nozzles on the front carb and intake manifold?
>
Unless you are running smog stuff the vacume ports on the manifold should be
capped. The two big ones and one little one. The vacume nozzle on the front
carb goes to the distributor. The carb nozzle should be plugged when setting
timing, hooked up when adjusting the carbs.
> Thanks,
>
> Ken Pearce
> B'ham WA, 68-2000
>
>
keith
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