ps374
New member
This is my first post. I own and 84 Corvette which the previous owner made some mods on. I am not sure if these mods really gained much horsepower. The car runs very good. Its not a rocket ship but it can brake the tires loose without power braking. Never had it to the track so I have no idea how to compare it with other 84s. Here is what the last owner did. He put and Xram intake with a Wealand illiminator 4bbl manifold. I had it apart because the seal was leaking on the intake and giving a high idle. The ports are much larger on the intake then the stock crossfire. He put and 85 fuel pump in the car with some kind of fuel pressure regulator and and 8746 ECM with some kind of chip which I was told was not programable. I believe the ECM is from a Camaro. He inlarged the throttle bodies, removed all polition equiment and guttted the cat with flowmaster mufflers. The car always throws a check engine light which I believe is normal with such mods. He also made the 84 hood air ducts funtional by cutting the fan shroud and sealing it with weather stripping. He also weilded the butterfly flaps in the open position. So I have several questions which i am hoping some of you guys or girls can answer. Has anyone heard of this conversion before and can anyone give me and estimate as to how much horsepower these mods may have gained?