Now I have made a few small modifications to my Troll R, which have resulted in significantly better acceleration and gas acceptance.The following was installed: 1. Abbott-racing intake tube 2. Abbott-racing pop-off valve 3. 465 cc Injection nozzle green mapTun Performance 4. Walbro High-performance gasoline pump 255 LPH Especially the passage from 3000 rpm to the limiter has improved enormously. Thanks to the thicker intake tube, the sound in the upper speed range is even more sporty Lt. . Tech 2 all values in the green area. I am not the friend of conjectures, but I guess there should be a good 10 HP extra power inside. A performance measurement soon it will show (hopefully). Now only the sport exhaust manifold of MapTun Performance, with the more thinner electric fan, (should bring good 15 HP more) is planned. But then is really closing with tuning. My pistons are then at the maximum of the contractable, the gearbox probably also. a few current pictures of my favorite including photo of the engine compartment. Ciao Faruk