I currently have an 88 Firebird with an LO3 305 TBI but I will be swapping over to a rebuilt 350 in the next couple of weeks. My current ECM is the 1228063 and I am wondering what ECM I should swap to that will handle the 350 but won't cause me to rebuild a whole new wiring harness.

Will the 1228746 work?

I am new to tuning and any help would be appreciated. Thanks.