HI friends,

I have following setup in my EG civic.

B16A2
Xforce Headers
Exhaust
Cold Air Intake with POD filter

recently i am feeling that my car acceleration is not like as it was before(i have never tuned it) though on all RPM range it is lacking but specially on high RPMs it gains acceleration too slow.

what could be the issue do i need to tune up my car? i have plan to change the fueling system means injectors, rail and pump, can anyone suggest me compatible combination
of them (for example injector size cc, company and fuel pump etc) and my engine in stock will that make any difference in acceleration? i can spend upto 800-1000 what else i can upgrade in this budget to boost the perfomance?

Thanks in advance