Quote:
Originally Posted by Kurt V
I first thought he might have that problem too, but then the backfiring should persist and even get worse as he ups the rpms.
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This was not my experience with my '73.5 911 T (CIS) with the Cams too advanced. I got a little popping at idle, it went away at higher RPMs. It would take off like a ra*ed ape and overheated too.
Good luck.