Quote Originally Posted by Raymo86 View Post
Can a stock pump get more that 13 PSI? Do you recommend updating the pump and the Spring? I will play some more with the VE tables tonight, but am not against upgrading the pump and spring, as they are both orginal as far as I can tell.
An ACDelco EP381 from a 96 Vortec works well. I have an 18 LB spring that I can run between 15 - 20 LBS. I ordered it with my bored 46mm TB but, I'm sure you can find one on FleaBay or Amazon
https://www.ebay.com/itm/26451283730...wAAOSw2xRYWVJj