Good Luck!
Don't sell Detroit (or Dearborn) too short. Recognize
that factory jetting and tuning are designed so the vehicle will operate at high
and low altitude, high and low temperature, etc., etc. Therefore, they
lean toward a conservative compromise. [ This is why computerized port fuel
injection is so good, as it can deal with a lot more variables and keep them all
in balance on a millisecond (if not microsecond basis).
Most any older stock vehicle can be leaned out a little
and still run fine in San Diego. BUT, be careful when you run it under a
load [like climbing the Grapevine on I 15 when it is 105 in the shade.]
The lean tuning can very easily cause burned exhaust valves. (A good excuse for
water injection.) These "hot shot" tuners tend to focus on best case conditions
and ignore the others. This can get you in trouble. All this is not
to say this tuner isn't great, just don't expect a lot. Don't forget that heat
engines still must obey the laws of physics and thermodynamics. Efficiency
is still ( T2 - T1) / T2 no matter what size carburetor jets you
use.
Keep us posted.
Good Luck,
Oliver Filippi
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