my 87 turbo II runs so inconsitant... I dunno wut the problem is... i just changed the fuel filter yesterday hoping that was the problem but nope. When i drive it all seems fine until i actually punch it sumtiems itll rip through the gears and really move then say i turn it off and turn it back on and drive it, it wont go nearly as fast. then after a few starts and time itll drive much quicker again...i noticed this after my 1st time at the track with it. My 1st run was a 16.4 2nd run was a 14.5 and 3rd run was a 15.8 and i knew it wasnt my driving throwing my times around. could I have clogged injectors or what??? would bad gorunds do this??? what can it bee I need helpppppp pleaseee

 

is this my grounds???? please someone i really wanna figure this out.

 

Is it completly stock?

 

pretty much besides a blown out cat,mufflers,shortthrow,plugs/wires,filter intake.

i added a ground to my negative on my battery cause there wasnt 1 there... also a few others but still no help but now when i start it up it jumps to about 2k then falls well below 1k almost like its gunna die but it doesnt, then it comes back up and stays at a pretty good idle of about 800-850. When i punch it i hear the turbo but it doesnt really seem like its goin any faster.... sometiems itll shoot off like a rocket but most the time its slower then *****. I REALLY NEED HELP I HAVE NO IDEA

 

mine did that i had a vacuum unplugged i am thinking it was the map sensor or something