OK so far so good, i took the egr valve off and cleaned it replaced the pcv valve and the fuel filter, i am only a small engine mechanic, outboard boat engines to be exact, anyway the motor was suffocating which i thought was too much fuel until i took the injector cover off and noticed there was back pressure coming out the intake, so to make sure i wasn't going in the wrong direction AGAIN and destroy a perfectly good cat, i took the O2 sensor off so the exhaust would have a place to go, then it started it, wasn't hesitant but still a little rough, but thats probably because only so much exhaust can escape through a 3/4" hole lol. i was talking to the fork truck mechanic at work saying i haven't heard of a cat going that quickly (because i haven't) and he told me he had one go on him on his way to toronto (which isn't really that far away), so i told myself that would be the last thing i'll check (being the most expensive) other than a stretched timing chain or a fuel pump thank god it wasn't the timing chain so i think the problem is licked, thank for the help everyone, ps if anyone needs help diagnosing a boat motor don't hesitate lol.
