89 7mgte burning lots of oil

[bbullsj]

after checking all fluids and making sure they were good and timing it correctly i took it for a test drive. seemed to stutter just slightly on take off from driveway but then was fine for about a 1/4 and then cut almost all the power and wanted to stall and was stuttering very badly. i turned it around and almost didnt make it home. when i turned around i stopped completely and it stalled. i started it again and it ran like crap and then stalled again. i was able to get it back home. about half way up my driveway (about 1/8 of a mile) it ran better and wasn't missing and sputtering. i haven't messed with it since but im just getting more mad at it by the day. its gorgeous out and i want to drive it. what kind of stuff should i start checking. oh, i forgot to mention that when it was sputtering at its worst the check engine light would pop on and off. it did not stay on though. before i replaced the head the car always had a check engine light on and it hadnt come back on until i went to test drive it. im not sure what changed but i think it was on before b/c of an o2 sensor. it has a full 3 inch stainless exhaust with no cat sop i thinks thats why it was on before. it ran fine and i had other stuff i was working on so i never bothered to pull the code. now i wish i would have so i could know :S