I recently changed brand of 72lb fuel injectors. I had 1 in a set that I had gotten used bleed down and start to stick. I had no idea what brand they were so I ordered a whole new matched set. My question is should I need a retune? It runs ok my air fuel looks ok. I'm thinking it might feel a little soft? I haven't gotten a chance to get into it further but I'm kind of thinking I should be taking a trip to the dyno and/or giving lund a call. I actually just had an o2 sensor problem that I just straitened out. In any event the injectors I took out were 1 hole pencil tip and the ones I put in have multiple holes. Any advice would be appreciated.