I have a 90 Suburban 1500 4x4 that is coming back to life and I need some sources for custom chip programming. THe reason I need this is that modifications to my Chevy 350 motor have rendered my air fuel mixture OK at idle but as soon as I come up off idle, my rig goes too lean. Besides not being good for the motor, the lean condition is robbing me of HP and the state of Oregon DEQ is difficult to pass.
The mods started with the desire for a forced induction application "down the road"....I did these mods in 1999. I dropped compression to 8.5:1 with hyperutectic pistons, ported/polished the stock heads, added Edelbrock timing chain, RV cam(very mild), Edelbrock intake manifold, Edelbrock reworked throttle body, throttle body spacer, Edelbrock "Tubular Exhaust System" (read small headers), high pressure oil pump, and modifications to the transmission(shift kit, Corvette torque converter).
THe fueling was never altered and my belief is that the ECU air fuel map needs to be altered and that I need fuel injectors that can deliver more fuel into the combustion mixture.
Are there companies in the Pacific Northwest (Oregon specifically) that do this kind of work? Also, please feel free to offer opinions and suggestions. I realize there isn't a ton of info here, but I am guessing this will take a while to figure out.
Thanks...
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