1. No experience.
2. I rode the stock Roush kit and tune for a couple months but, couldn't go faster than 90 mph with my 4.10 gears. I forgot to tell Roush I had the gears when I sent my PCM in. I bought the +2 lb pulley from Troyer and had my truck dyno tuned at a local shop. I gained a ton of power over the stock Roush tune and pulley, but the truck developed serious detonation as I got into the winter months. I ran through winter without going WOT and got Troyer tunes as soon as I could. With the Troyer tunes, the detonation went away and the truck is much stronger then it was with the dyno tunes. Also, the low end torque from Troyer's tunes is like night and day over the dyno tunes. It's so strong, I rarely go WOT. I strongly recommend the +2lb pulley and Troyer tunes. 
3. I have no experience with porting but I might have it done sometime next year.
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Roush Intercooled Supercharger, +4lb pulley, Dynatech LT Headers, Duals - Magnaflow Tru-X Muffler, 4.10 Precision Gears, FAL 270 E-fans, Brisk 3vr14s Plugs, Tuned by TPS/TP/Self, 13.6 @ 105
Eibach 2/4 drop, Roush Chin Spoiler, HD Grille, P.E. Tonneau Cover, 22" AR Razor 6 Wheels, 285/45-22 Toyo Proxes S/T Tires
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