Yes, my friend has has his 350 boosted for a few years too. Two turbo setups, finally moved onto a Paxton supercharger. He's also consumed 4 motors in 2 years.
Dealing drugs is the key.
EDIT: Shouldn't say "Friend", so much as he waves at me when we pass in traffic. I helped him out on several automotive projects when he stopped dealing and got a legit job at the auto parts store. He soon discovered that "Legit" doesn't build 1000 hp cars when you have an IQ of 102.