I have a 350 TPI in my car now. The car runs and all off the stock 85 305 tpi. Not the greatest but it runs and drives. If I got a custom chip burned for it by Ed Wright would they be able to change the specs of the ECM from a 305 to 350? Is that possible or would I just need a 350 TPI ECM? Thanks in advance, Eric

 

You should make sure you have the right knock sensor, but yeah it should just be a matter of burning a new prom.