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Hesitation at 3000 rpm

  • 1973
  • 911 Carrera RS 2.7
Mileage: 
50 000
Engine
South Bend, 
Indiana

I recently bought an original numbers matching 1973 RS which has a slight hesitation when accelerating. It pulls strong up to 3000 rpm then stutters and the exhaust pops a little then after 3300 rpm it pulls strong again all the way up to the red line. Once the oil gets to around 70-80 deg C the hesitation stops and the car run fine with no hesitation at 3000 rpm. Do you know what the problem could be?? Someone said it may be that the MFI needs adjusting?

 

 

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