Glad to help any way I can. Like I said, the basic mods you have in the plans should get you into the 200-225 HP area. No need to change injectors but might have them tested to be sure they are working correctly. I dug back into some older info and the P3000 injectors do have a lower pop pressure like the VE or A injection pumps. The P7100 had a 5x.010 injector with 260 bar. Those tips would be fine for a P3000 but the pop pressure would mess up the timing. You can't substitute VE injectors because they have the wrong size threads for the fuel line. If you wanted a bit more fuel the 5x.012 tips would be more than adequate. If you pull the injectors the pop number is usually stamped on the body. If someone has accidentally replaced them with the P7100 sticks you need to fix that because the timing would be retarded making for poor performance. Your injector tips may be DLLA145P574 which is Bosch part 0 432 131 694. Another member had those on his P3000 engine. If you wanted a bit more performance, member Nascarmark could probably help you. Might take your injector bodies, assuming they are the right pop pressure, and install 5x.012 tips. The closer the pop pressure is to factory tolerance the better the engine will run. Usually no more than 5 bar variance across the 4 injectors.