Hi Jackson,
I've had the same problem with the miss at 4500 RPM. If you are running a side
wired dist. cap, I would suggest you check inside. The screws came loose and I
was arcing inside. It was in the mountains too. I was at about 8000' and it
was driving me nuts.
I'm running a built up 1275 with a electric fuel pump and have never had the
fuel starvation because of the corners. Just a bad fuel pump. I would check
the pump, rebuild or replace with a electric. The electric mounts under the
rear deck right side. Right beside the tank up under the fender. If you can
find one off of a spridget the bracket works great and it makes it easier to
replace too.
Good luck
Rick
Jackson Zimmermann wrote:
> Heading to an autox (BRSCCA in Staunton, VA) yesterday, I had to cross a
> rather large mountain with a long, steep constant grade (Afton Mountain for
> the Virginians on the list). I was running between 4-4.5K rpms up the
> mountain and began experiencing intermittent misses. Nothing that kept me
> from making it up the mountain, but very concerning when running on an
> Interstate. The points are brand new and properly installed. The plugs are
> also recently new (NGK BP6ES) and gapped slightly larger than stock. The
> valves are set to the competition settings. Any suggestions?
>
> At the autox, the car handled wonderfully. The one major thing that kept us
> from setting much better times was fuel starvation. Whenever we hit a
> really sharp corner (almost every corner) the car would experience fuel
> starvation. I'm running a 1275, but it still has the stock 1098 mechanical
> fuel pump. I haven't checked the float levels recently, but they we set
> properly a couple of years ago. Would going to an electric fuel pump solve
> this or would I need to go to a higher pressure pump with a regulator close
> to the carbs? Any suggestions on this one? If I were to stick in an
> electric pump what brackets and changes are suggested for a clean install
> since this car has never been setup for it?
>
> Do ya'll think that these two items are related? TIA
>
> Jackson Zimmermann
> jzimmerm@albemarle.org
> '64 A-H Sprite
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52 MGTD,Sparky 74 MGB, B-tris 76 XJ12 Coupe, Jacque
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