ive seen people bidding up to $250 for them, absolute joke.
Ive studied the workings of turbocharges and internal combustion engines for 3 years at tafe. . take it from me, attaching a fan to the air intake of the carburettor will NOT increase power. . i can explain it using Reynolds number, laminar flow equations and venturi pipe diagrams but il save you the time and just tell you.
It will not increase power, most likely scenario is that there will be a decrease in power.