After screwing with my car (partially tuned) for about 5 hours today, I came to the conclusion that everything went to crap at the point when I fueled up on my way to the drag strip last season. The car ran like crap, nothing over 30% throttle.
This discovery came after many, many attempts to start the car and keep it running over the last few days.
I drained the tank today, flushed the lines with fresh BP Ammaco ultimate, reflashed with staged injection instead of batch firing then set Tunerstudio on auto pilot. Just turn the screw driver on the throttle stop every few minutes to get a new area on the table.
My new employer is gonna let me bring the car in so I can do a little dyno tuning / training. We might make it to the GRM$2013Challenge this year. I will keep you guys posted.

 

Ah, the number of times tha trancid fuel has caused similar problems on projects I've (been forced to) worked on has been amazing. Went so far as to find a dead mouse in the fuel tank once.

It always seems to come down to fuel and injectors.