what is a safe boost psi to run on stock internals

 

Your a GLT, right now your running between 5-7 PSI. 15PSI is the max you want to run. After that the boost is out of the 13g's range of producing boost effiecently.

I would run about 10-12 PSI, you will see a nice gain and you will notice it.

 

Yea I just installed a mbc and am now running 10psi.... I thought the car was fast before..... I was wrong, lol