O man I know every trick on these cars. Let me tell you first of all that camshaft thats in there is the biggest reason why its gutless. Change out the cam for a performer cam and lifters. That will help out sooooo much. So lets say you did the camshaft swap. This is the other easier things to do. Get on ebay find used stock... double hump transmission cross memeber, stock h pipe, stock headers. Those would have to come off of stock 86 to 93 mustangs. Then buy a intake manifold you should sit at 240 hp.