by jdaniel83 » Wed May 27, 2009 3:02 pm
I also have the Holley Pro-Jection and have had it on for about 8 months now. It took me a while to get everything adjusted to where it needed to be (with lots of great advice from ChevelleGuy and Joe G, thanks a million guys). I'm now seeing about 10.5 MPG city and 11 MPG highway, but I haven't had it on the highway since I got everything adjusted correctly so I imagine that will go up a bit (hoping for 12+). My GW has a 4" lift and 32" Swampers.
'89 Grand Wagoneer; 360 with Holley Pro-Jection TBI, 727, 3.73 Motive gears
'66 Gladiator; AMC 327 Vigilante, T-18, 4.27 gears
'70 Wagoneer; Buick Dauntless 350, TH400, 3.73 gears
"83 Wagoneer Limited; 360; 727, Dana 44/AMC 20, 3.31 gears.