I have a 99 GT Auto with a 2800 Stall converter, 4.10 gears, Crower Cams (Intake 254, 205 .311 Lift...Exhaust -258, 212 .317 lift) Port And Polished Heads.
At 70 MPH I'm at 2700-2800 RPM's and at 75-80 I'm around 3000-3200RPMs.
I drive about 40-50 miles a day and when i calculated my miles with my gallons it showed a little over 12mpg.
P.S I started hearing a noise from my back end so i took to my friends shop and they said its the gears slipping could that have anything to do with it???
At 70 MPH I'm at 2700-2800 RPM's and at 75-80 I'm around 3000-3200RPMs.
I drive about 40-50 miles a day and when i calculated my miles with my gallons it showed a little over 12mpg.
P.S I started hearing a noise from my back end so i took to my friends shop and they said its the gears slipping could that have anything to do with it???