With the turbo I just bought today, I am going g to start with a draw through setup. Perhaps once money allows I will switch to blow through with intercooler.
I like the reliability of the tbi which is why I was looking to blow through one.
I would use a stock computer and tbi from a 350.
The O2 should richen the mixture fast enough to not lean out during boost. There would be a Meth kit anyway.