No? But you just said "When it was in the 20's, the injectors were considered maxxed". So is it a yes or no?
Frankly the OP only wanted to know if the stocks would work on his build or if he needed to upgrade. So if at 20+ or higher, if they are close enough to being maxed, if they are in need of being replaced... I would suggest to do so.
The OP clearly states its his first time with HPT, so what would he need to watch for to know?