errbody is being such a debbie downer.
true, a gtp will be easier to mod. but at the same time...you will wind up having to replace the trans in those as well. because they still suck.
you only have a 4t60 if you have a GT or an SE. if you have a gtp, well guess what, you have the 4t65 for a trans.
so OP there are a few options you can take. you can find a junkyard trans 4t65 for cheap, put it in your car, and then do a headers and a top swap and a tune, or if you already have a gtp you can get headers/intake/drop to a smaller pulley.
but remember, whenever you do ANY pulley dropping/serious mods, you will NEED a tune.
