Stock LS1 with powerdyne 6 psi kit

[hotrod]

Ok a friend just bought a 01 SS bone stock with a powerdyne 6psi kit NON-intercooled on it. He brought it straight to me and said fix it. lol Took it for a drive and its not happy at all. Sparks knock bad if you barley get in it. This is my first supercharged car and not sure where to really start. I pulled the tune and someone has been in it before but its not right.
It came with SVO 42lb injectors, 255 pump, and TR-6 plugs all not installed. I just put them in tonight. Its a suck threw MAFF setup and has NO FMU.. From what i've read i guess thats why they got the 42's and 255 pump. I looked for a good base on holdens site but there isn't one. Could someone set me up with a good base to start off of, i'll include the tune i pulled but i don't know if i need to start from scratch. I'll also include a stock 01 file from holden's site if needed.

Thanks Brad