[97redgsx]

ok so i have a freshly rebuilt motor and ever since i reinstalled it it has had a high idle. it seems to "stick" at a certain rpm usually anywhere from 1100 to 2000 rpms' more often its around 1500. whats strange to me is if i "blip" the throttle 500 of so RPM's it will drop down to a normal idle 700-900. also sometimes if i accelerate hard then have to stop fast and push in the clutch the car will almost stall, and sometimes it does stall....im very confused by this and for once since ive owned this car there are NO check engine lights on...thanks in advnce guys.