I am trying to read the bin off of my factroy eprom. What chip setting do I want to use to read it? It doesn't have any numbers that look familiar in the programmers software. It's the factory prom out of an "87 Formula 350 Firebird.

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dgreene
'87 Firebird Formula 350 TPI, Ported Plenum, Adj. Fuel reg, gutted cat, catback exhaust, air foil, K&N air filter, chip,170 thermostat,Borg Warner Posi 9 Bolt w/ 3.23 gears....soon to be making custom chips for this and my 87' GN

 

Should be 27128A or 27C128.



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86 406

 

That's what I thought as well, since my blanks have those numbers on them. I think I may have screwed that one getting it loose from the carrier(to much heat). That's ok I found the ABWT bin on the GMECM website.

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dgreene
'87 Firebird Formula 350 TPI, Ported Plenum, Adj. Fuel reg, gutted cat, catback exhaust, air foil, K&N air filter, custom chip(by me),170 thermostat,Borg Warner Posi 9 Bolt w/ 3.23 gears....