If it bucks with the clutch fully engaged, it has nothing to do with clutch.

Check both the cooling system and the Distributor... as well as the carb.

Is flooring it as opposed to gradual acceleration, the same?

Canadian Musclecars opined in :

> My 65 A-code 4-speed fastback has a couple of interesting problems. The
> car runs well when cold but... after a few minutes to the point where it
> boiled over. Also, as soon as it gets warmed up, it starts to buck. This
> was so bad last time that I thought I had broken a tooth in the rear
> end. I left it until the next day. When I tried it again (cold), it was
> OK. Some have told me the problem may be the clutch or an oil leak onto
> the pressure plate. As far as the overheating goes, I've been told it
> may be the water pump, a cracked head or block, a head gasket that was
> installed backwards, overly advanced timing, etc. Can anyone give me
> advince as to the steps to take to diagnose these problems? Any help
> would be greatly appreciated.
>
> Richard
>
>
>



--
- Yes, I'm a crusty old geezer curmudgeon.. deal with it! -