HELP!!!!!!!

Having major issues with a holden 5.7ltr that has been pulled out a 7ltr built motor with a V7 vortec side mount blower running only 8psi, running a factory cam (only to get road lisenced) std headers and exhaust. I can't seem to keep fuel into it at idle, no matter what i do it seem to be around to 17afrs at idle. soon as it comes out of idle conditions its fine but this bad fueling seem to be causeing me hunting idle bad starts stalling over heating etc.

I have been through the normal things like vacuum leaks and stuff and nothing to be found. The tune is in open loop and at the moment i've been trying to add fuel through VE but with no luck. it has an 0005 op system aplied to the car.

What am I missing????? Should i maybe look at A0007 TPS VE Table as being set up wrong or something? I'll hitting brick walls what ever i do so any advice opinions thoughts or comments would be awesome.

Can post tune if needed, let me know

Thanks Heaps Guys and Girls