I know you cant pulley down on stock tune but my scenario goes like this. I got all my stage two stuff but belt or oversized tensioner. Is it ok to run stage two with factory pulley for a week? I think it is it just wont have the higher boost yet until i put pulley and belt on. It has factory pulley on now until then. I will basically change my injectors and pcm and do the pulley a week later with belt. Thanks in advance.

 

yes that is fine, no harm done. Basically that is GM stage 1.