I have a 1986 305 Iroc. I am running the stock computer with a ported mass air flow sensor. Sensor flows 750cfm. I will soon be running a ATI procharger with 18psi boost (if all goes well). With the ATI system the maf goes inbetween the intercooler and the TB. What is the best way to calibrate the ecm and prom. Custom prom, aftermarket tuning (which I am not familar with), piggyback Speed Density at WOT, or speed density alltogether. I would like to keep the maf system if at all possible. I like the way it self-adjusts to different temps and airflow. Any tips and suggestions would be helpful.


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1986 Iroc Z 305
3.23 posi-rear
ported mass-air
custom ram-air
removed air pump, converter, straight pipe no muffler
0-60 5.5 sec
1/4 mile at 102mph
top speed 160mph (racing a mustang)
est 285hp
fiberglass hood
$2000 Alpine stereo hit 135 in spl comp.

 

Think Speed Density.
Think Syclone.
Might visit www.syty.org and look into the 1227749 ecm.
For that much boost you'll be pegging the MAF at 2K rpm, in all probability