I recently finished rebuilding my 7mgte engine from an 1987 supra. I installed an upgraded ct26 turbo with a 60-1 trim package. the problem i have with my car now with the engine in it is that once it gets warmed up, it hesitates and "stumbles" at around 3000 rpm and up and wont seem to rev up or accelerate. the hesitation seems to occur when the turbo is spooling up. I figure either the fuel pressure is dropping or the ignition is cutting out but dont know exactly what to do. Please help!!!!!!!!!!!!!!