HELP: car no longer has balls!
 

as it says, she doesnt boot. down low in the rpms (AROUND 5000rpm and below) the car seems to have the usual power, after that it just seems to go flat, makes the same noise... just doesnt go anywhere fast (its a b16)

around the same time this started to happen, my speedo and odometer crapped out

any ideas? and how much to fix

ty