S13 Not Wanting To Accelerate

[Cheezit033094]

Hey guys, my 240 will barely accelerate after 40 percent throttle. She just gets louder. I've replaced the plugs, wires, cap, Rotor, knock sensor, o2 sensor, fuel pump, fuel filter, pcv valve, and coolant temp sensor. I tried pulling codes and there are none. I checked the tps voltage. .45 volts closed and steadily rises to 5. I've cleaned the throttle body and mass air flow and verified the wiring. I run premium and have Timing set to 23 btdc. My idle is set at 650. She idles great, too.