98 ls1 vrx5 cam slp 243 ported/milled heads fast 90 intake nick Williams 92mm tb voltage at .57 it's a a4 with a 3400 stall

My problem is that it idles to high!! B4 car had h/c/I since it had a stall u had to rev a lil to move an since it's been modded when I put it in gear idle gos up an it jerks an pulls it self doesn't seem right or is it just the set up over stock?

 

is it still running on stock tune?

 

It was a basic run tune from vengence racing