|
Bland
Join Date: Nov 2003
Location: I'm 'out there...'
Posts: 8,803
|
Is this a California car? My 77 is and I had a similar problem a few years ago. I advanced my timing until the car started to ping under load and then backed it off slightly - it runs awesome now.
__________________
06 Cayenne Turbo S and 11 Cayenne S
77 911S Wide Body GT2 WCMA race car
86 930 Slantnose - featured in Mar-Apr 2016 Classic Porsche
Sold: 76 930, 90 C4 Targa, 87 944, 06 Cayenne Turbo, 73 911 ChumpCar endurance racer - featured in May-June & July-Aug 2016 Classic Porsche
|