have to turn ignition on and off to go 3 miles

What is your question?

When truck is are you doing or even driving it seems to load up and has no power so if I turn the key off and turn it back on quickly and rev up the rpm it blows white/blue smoke then runs fine for a few miles then key off/on quickly it runs ok I have already replaced the lift pump I have checked timing the injector pump it has fuel pressure coming out my nose is running on much don't have equipment can you help or have suggestions thank you