I'm going to be bolting up the new turbo on Sunday and just want to know what sort of AFR I should be looking at for it to be safe. Won't be thrashing it until mapped but do need to drive it to and from work for a couple of days as it's my only car at the moment.

It's a 97 AEB Audi A4 with;
Hybrid bastard K04-023 alike turbo
Evolution Racewerks TIP
3" MAF housing
C20 LET injectors
3bar FPR

Anybody into VAGS have any idea what sort of numbers I might be looking at?