My first TBI throttle body groove. This was for my nephews project and only vehicle. He was all in after telling him about the groove. I took pictures and put it on and the blazer idles like a dream. We went on the first test drive as we could only go around the block. He could not stop smiling! The throttle response put us back into our chairs as the front end lifted like a drag car. Now I cannot do a relearn or a mileage test because the transmission is slipping in 2nd and 3rd gear. We are going to get some snake oil treatments for his oil,trans,diffs. I will certainly have him record a testimonial after the installs. Thanks for looking at my new thread, stay groovy!