tell him you just bolted it down to your intake and torqued it, if you were to take it off you would have to replace the gasket... and it does not make sense for you to have to spend money for someone else to use your parts! LOL
but seriously if the friend of a friend is that interested in the carb, he can pony up the money and get himself one.
You didn't spend 1300 for someone else to have great carb, right?
If you did, then don't get stingy now, i want one too!