gorganl2000

does your idle "hunt" when warm? usually high idle is associated with a vacuum leak. recheck all those vacuum hoses to your TB, Power Steering rack, ICV, automatic choke, etc. also, the idle screw itself carries an o-ring on it, you may want to remove it to see of its worn and leaking

isn't a tf035 smaller than a td04L? it may not be possible to get 250whp out of that size turbo i can say that a Td04L on a 5e is a nice combination for everyday usable response/power. may get u around 200-225whp with a great torque curve that 247whp was on shaved 5efhe pistons and stock rev limiter at 18/19 psi on a gt28rs iirc it was a mix of pump and race gas to stop detonation as the local pump gas was very very low quality