I hope either the trans you have is good or your planning on adding another 1700-2500 for a trans Triple Edge Performance is the way to go for transmissions. I think a 3.4 cammed car would kill a trans if its not solid now. Also I think 3.4 on a gen3 will require an intercooler to run safely also a cam will certianly help with knock so will a good tune. 3.4 pulley, I/C, cam headers and tune would make a pretty solid car. But the next problem will certianly be the stock transmission. If only doing one or the other do a trans NOW and safe the headaches.
The trans that's in the car now seems to be solid, no shavings in the pan or evidence of future problems. I guess I figured if I'm not going to be racing all of the time, seldom would be a good description, the stock trans should be okay...That sucks to here though lol.