i thik you do it on the 73 sims now..??
best advice i can say is just use the exact power settings and pitch datums that they give you and if they dont give you any ask for them. Make small changes at a time and wait to see what that does first. God im begging to sound like an instructor!
I reckon sim time before hand would be beneficial but im not sure how much an hour in a sim costs these days...?