1992 Honda CX Cranks but Wont Start...has spark and fuel.

the rsx are currently in the cx lol…a next set will be here shortly…but after that it will be kinda of fishy hahah.

anyways…

power lost around 2k to 4k rpm. it seems like no power even on full throttle. after 4pm power comes back…its like bad injectors or spark plugs?
autozone…sold me 3 bosch plug and 1 bosch supers could that be it?