drift slut_fd

i got a 93 fd3s......first problem is when the car is in neutral it idles fine but when i put it into gear and hold the clutch in while keeping it idleing.....the rpms jump and and down....also when i am not keeping on the gas it feels like i get fuel cuts sometimes....think it has something to do with fuel but a few pointers on where to start would help alot....second....when shifting gears if i go anything over 5000rpm the next gear will have little boost maybe 4-5 psi if im lucky....i check for boost leaks seem to be good...ince again any pointers will be helpful

89FC Alpino White

check out the TPS...