I recently purchased a 84 crossfire and i am trying to tune it up. I've read over information here but haven't found this problem yet. The car ran perfect which I'm told from the people i bought it from/still helping me work on it 14 years ago. It sat for 14 years and had 132k on it then tho. It was running really rough when i got it but changed out the o2 sensor and its running great except with a hesitation when I punch it from idle range. I replaced the fuel pump when I got it but with the stock one before I started reading about the 85 swap(hopefully this will fix the hesitation). just this week though it has been having a hard time starting when warm or hot but not cold(it didn't when i got it). and it idles perfectly at 800 rpm park and 700rpm when in gear when cold. but as soon as it warms up and I touch the throttle it will most of the time flutter and stall out. I can sometimes get it to idle but rarely. Was going to replace coolant temperature sensor but not sure what else it could be, maybe have the bushing service done? any help is appreciated, thanks!