how do you stop fuel cut?
on my 89 when i boost high the fuel cut kicks in and it sucks so i was just wondering how to stop it...i put a check valve on but i dont know if i put it in the right place. can anyone help :banghead:

how much psi when you hit boost cut??

you can only run about 11psi w/out hitting fuel cut. Buy a Fuel Cut defenser from HKS or Install a Lexus AFM and larger injectors with an Apex-i SAFC.
You also would need a free flowing exhaust...and air filter. Don't run more than 14-15 psi on the factory turbo. If you want more power than than these mods give you do some research, plan on spending a lot of money and make a plan before you start buying parts.

With these parts and some dyno tuning you can make around 300rwhp on a factory turbo.