Nothing major.My T2 is getting a little noisy on the top end when she warms up. I've got a 94 2.5 TBI out in the barn with only 50,000 miles on it. Popped the cam out and gently polished it up and it shows no wear marks that i can see. I'm thinking about swapping over the cam, caps, lifters and rollers to see if I can quiet things down a little. I'm not looking for any performance improvements right now, just if these parts will be compatible and reliable. I don't know how 88 turbo cam specs match up to 94 TBI cam specs, but I know they're interchangeable (different sprockets too). Can't seem to find anything online with specifications. Any input, advice, (or words of warning!) much appreciated. Thanks G.P.