My f4r is forged currently 335 bhp, had about 10k out of it and i run it daily for the commute to work. its rought till the piston's warm up but after that you can't tell its any different from the standard 182, had a few mates actually comment on how it feels totally normal until you give it some beans.
Just keep off the boost till it warms up and its sweet, i did boot it once while cold and ended up with an engine bay full of oil as it blew the dip stick out but later found the breather had a kink in the pipe.
I think about the only problem i have is in heavy traffic trying not to stall the engine, its a bit on / off when cold.
Running a rotrex though not a turbo, don't use my turbo as a daily.