I buy my cobra taps form MoreBeer already cut to length and put together.
After transferring to my freshly sanitized keg, I crash the temp to 34F.
I have the CO2 regulator set around 25 or 30 PSI (Meh, close counts ).
I leave it there a couple days then reduce it to 11 or 12PSI which is my normal settings for nearly all beers. I did increase it a little on the last Hefe I made as I prefer that style with more CO2.
I server sometime after the third day (to be fully forthright, I might tap some sooner than that) usually after a week of conditioning.