I am about to put some mods on my truck was looking to get to the 500 HP mark. I will be adding a FASS 150 soon. Exhaust manifold and exhaust coming soon as well. After the injectors and turbo. Meanwhile I am running the stock turbo is there a way for me to adjust the boost pressure of my stock turbo I think it is a manual adjustment not an electronic. I also have read that I will need a boost fooler if the pressure goes too high. I was looking at about 32 PSI. Thanks in advance for the replies.

 

Just add a manual boost controller in line with the wastegate

 

You need another turbo to get to 500 HP with any efficiency. The HE341, sans injecting propane thru it, is not big enough to flow the air you need for a decent 500 HP engine. Fro a solid 500 HP you need something that will create a decent 45-50 psi of boost and not heat the air to baking temp.