88 Thunderbird Problem.

Ok so we just got are 88 ThunderBird Back on the road. But Now The motor is surging with power. At Idle. Dumping LOADS of Fuel. We Replaced Map sensor Distributor. Injectors. O2 sensors. Fuel Pump is working. Fuel Filter replaced. Still same problem. We are Cant figure it out. Computer Is looking to be replaced. Its a 3.8l V6. If you have any other help it would be very Helpful. I just don't know what else to check or replace. It's been Like this all Summer. :banghead:

Thanks
HT

P.s It drives pretty damn good with this problem.