Its an AFB.. Going to leave everything as found. With the 2.73 gears the vacume gage pulls 16 inches at 60-70 mph. At 80 mph the vacume gage slowly comes up to 20 inches. There are several entry's in the original owners book where this car was getting 18-19 MPG! 80 MPH seems to be the sweet spot with this motor/gear combo. right now my combined city/highway driving is close to 15 MPG.
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Keith Collier
61-63 Pontiac Tempest
Tech advisor
POCI.org
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