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Old 04-15-2013, 10:33 PM   #33
Rogue_Alphonse
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Join Date: Dec 2009
Location: Gap PA
Posts: 280
Re: fuel mileage k5 blazer guys?

My '86 with a 5.7 TBI [running a 1" Heix spacer, 1/4" injector plenum riser, and .202 Vortecs] got 15 average bolted to a 700R and having 3:08 gears, and it had 33's with 7" of lift.

The same engine went in my current '88 minus the 1/4" injector plenum riser, with an SM465 and the same gearing and it got 18 average.
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1991 Mustang GT Vert, T-5 w/ Pro 5.0, Trick Flow upper & lower, BBK cold air intake, 3:73, BAMA chip, etc.
1988 K5 Blazer, [coming soon] TBI 400, SM465/NP208, 12 bolt rear, 3:08's, looks like a 1980.
1998 Jeep Grand Cherokee 4.0 fully loaded daily driver!
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