Idle problems in 5.0 99 ford

[jamaca85]

So I seem to have an idling problem in my 5.0 when the motor starts up motor starts shaking like it's missing but it clears up after 12 1300 RPMs and you give it gas but when it comes back down to idle it starts sputtering and trying to stall again we have changed everything from EGR valves cam sensors checked every fuel injector did voltage readings on everything compression check and it still has the same problem . We also checked the fuel pressure fuel filters and everything is okay