Alright so ive got a sound coming from my 94 gt that is really troubling me. Sometimes ill be in 2nd or 3rd gear and in the high rpm's when i go WOT I hear some sort of metallic sound coming from the engine. It seems like it stops pulling but im not 100% sure. The car has 164k miles so im worried it could be a piston or bearing issue. Anyone have any insight or ideas?