i have a 94 ls stock. im wondering ballpark how much power i can run with a stock motor. if i have to upgrade the head which seems like i have to do i will do that but i want to make around 300 hp with stock bottom end. Is this ok? a good tune is in the plans also with premium gas. it will be my dd so i want it reliable also. can i have a reliable 300hp b18b turbo? thanks guys. also i want to know what else i need tp upgrade in order to make it handle the extra power. thanks

 

Do some searching. There'll probably be more information than you'll need. Plus, you'll save yourself both time and flaming.

 

As mentioned already, there are several threads on this topic including a couple hundred plus page "Turbo LS" thread. If you spend a little time searching, you'll have more than enough literature to work with...