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01 cummins plenty of fuel, plenty of air won't pass 33psi. Help
I have 2001 Dodge cummins with few good mods. 150 airdog, air intake, edge juice with attitude hot unlock, 5" turbo back straight pipe exhaust, air ram intake. With stock turbo was pushing 35 to 36 psi. Fantastic. Later, decided to upgrade turbo to a fleece cheetah which is a 63mm turbo which was supposed to increase boost significantly. Installed it with high expectations, but was greatly disappointed. At this moment, turbo doesn't pass 33psi. I did everything I can think of. Maxed out wastegate, put boost elbow with pin hole, modified other boost elbow drilled hole and put screw in, totally bypassing wastegate with no improvements. I can't pass 33 pounds of boost. What can I do?