stock 87 L98 bin file? I've searched here, efitune, diy-tune, and moates site with no luck. If anyone can tell me where I can find this I would appreciate it. Thanks

efitune.com GM BINS and more

Looks like they were both released on the same date. Might want to try using abwt. just enter abwt and press the go button. Don't use the "enter" key; it won't work.

Broadcast Code Year Release Date EPROM
ABWN 1987 1986-08-05 16068654
ECM Prom ID Scan ID Platform
01227165 8656 8161 FB
Engine Displacement Transmission Transmission Type
L98 5.7 MD8 AUTO
Gear Ratio Emissions Contributor Get Bin
GW6

Broadcast Code Year Release Date EPROM
ABWT 1987 1986-08-05 16068672
ECM Prom ID Scan ID Platform
01227165 8674 8201 FB
Engine Displacement Transmission Transmission Type
L98 5.7 MD8 AUTO
Gear Ratio Emissions Contributor Get Bin
GW6 abwt 32.bin

I'll start with the ABWT bin.

Thanks