First time rebuild problems-trouble upshifting

Just completed my very first 904 rebuild with a 998 low gear set and TF-2 kit and took it for a test drive last night. Forward and reverse engage fine, but would not upshift from first to second. This morning I backed off of the kickdown cable to the point of not having any tension on it and it would finally shift into second at about 25-30 mph with very little throttle pressure and never would shift into third. Backed off on kickdown cable even more with no change, still no 2-3 shift even up to 60 mph with motor wound up tight. Im thinking its going to be a throttle valve adjustment issue, but I followed the instructions with the kit on initial adjustment. My ATSG manual showed a spring on the back side of (from what I recall) the the TP valve, but I didnt have a spring that would physically fit in that spot. I did however end up with a couple of mystery springs that I couldnt find a home for in the VB upon reassembly. Where should I start when I drop the pan?