87gn ecm!

I have a new repro one but it has an aftermarket chip. The chip is for stock parts but changes the timing and so forth
 
My car is basically stock besides the trans. Nothing else has been done yet, my ecm is just bad.Would the chip still work.
 
It will work better than stock. It was designed for a stock engine. I need the cover plate with the 2 screws so you will have to transfer yours
 
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