Need help.
My 71 911 stalls after 15 minutes (or so) of driving. It drives great, then the tach jumps all around then to 0 and the engine starts to backfire and sputter and becomes un-drivable If I sit for a while, it will start and drive fine. What's the problem. It has dual Webbers. What can I do to narrow down the problem? Is there some relay that might get hot and make the tack go crazy and cut the power? Is this a carburetor problem? Fuel pump issue?
I really need help because the summer is almost over and I want to drive it....
Thanks much.
Dave
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