I switched from nitrous to a procharger. The only regret I have is not putting the bottle on top of it.. but I left my nitrous line installed, so it's just a matter of doing it if I want lol. I do miss that initial surprise when the switch gets flipped. If a blower in prime boost is beast mode, nitrous on top of it is beast mode on 'roids. Nitrous will always be a fiending addiction with or without a blower. I say do it. The blower will provide nothing but power where it wasn't before, with the benefit of being readily available at all times.
Edit: Forgot to add, while water/meth kits are great and all, an air to air IC setup isn't terribly expensive or difficult for you to put together for that Non-IC kit. A lot of people these days prefer tuner and non-IC kits just so they can put what they want in place, instead of modifying or not installing parts that come with full setups. It's worth being intercooled. Most drag junkies prefer air to water IC just so they can benefit from ice packing. Water/meth while great for IAT reduction should really, IMO, only be used as an octane band aide for combustion temps for high(er) power applications. We had a guy in our Mustang club that really wanted to do a water/meth kit on his pullied M90 427R sold under the idea that he would gain some of the advertised power increases the kits claim, so we did the install for him and took it to the dyno. He actually made less power even though the timing was cranked up. He just wasn't pushing enough boost to take advantage of the water/meth, and his IAT's really weren't hurting his single pass power production. Maybe if we had heat soaked the crap out of the motor/blower prior, the water/meth may have sustained power production, not sure. Part of my reason for getting off the bottle and into a FI setup was to free myself from being dependent on how much chemical power I had left in the tanks, be it nitrous or meth/100 octane, it needed everything to keep it together on spray. But I digress, as I also removed my car from track use and went strictly street car performance. So A2A IC was a must for me. E85 does everything else if I want the max out of what I have.
I also ran comp cams 127020's, I too enjoyed their thump and made decent power NA/N2O. Those cams being bad for boost is an understatement, as they are also terrible for nitrous. The ICL and LSA bleed spray right out of the exhaust ports like you never wanted it in their in the first place. As for boost, it hemorrhages boost even worse than nitrous, as the blower is literally pushing air from the intake ports, out the exhaust ports. If you like the 127020's and want to go FI, I suggest the FRPP Hot Rods. Better ICL and less aggressive LSA. You'll still bleed boost, but not as bad as the 020's will.