[Healeys] missing at high rpm

[Chris Dimmock]

Other than the obvious tuning related suggestions (timing, mixture  
etc) I had a similar problem once. It turned out to be the fuel pump.  
If your pump is clicking all the time, and never really stops, it  
could be the culprit. I.e it pumps enough for sedate driving, but not  
when you press hard.
Chris

Sent from my iPhone

On 05/04/2011, at 11:42 AM, Maurice Maxwell <maxandreb1 at yahoo.com>  
wrote:

> After replacing a head gasket and all of the other gaskets in the  
> kit and having
> the head rebuilt.  I tuned the car and it drove around town just  
> fine.  Steady
> idle, smooth power.  However, on the highway, there was a serious  
> misfiring at
> about 4000 rpm when the throttle was fully depressed.  When the gas  
> pedal was
> slightly released the smooth performance returned and the car  
> continued to
> accelerate on to 5000 rpm.  I find this to be strange and I need  
> help figuring
> this out.  The car did this in 3rd, 3rd o.d., 4th, and 4th o.d.  It  
> did
> accelerate on to 5000 rpm in each gear when the pedal was not quite  
> on the
> floor.
>
> Thanks for your help in advance,
>
> Max
> 1961 BT7 MkI
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