3 Years ago I converted from a carb setup to an Edelbrock Pro-Flo RPM setup. It's been running fine with the base program and about 5 minutes of tuning but I feel there is a lot more potential in the engine. I've tried some changes but to be honest it's hard to notice much of a difference unless I go way off the deep end so it barely runs. Any advice from anybody with experience tuning these systems would be greatly appreciated. Thanks and here's my combo:

9:1 C/R 350
Pro Lightning 200cc Aluminum Heads
Comp Cams XE268 Cam
Edelbrock Pro-Flo RPM EFI System (1000 CFM)

Timing
Idle - 35deg Total
WOT - 35deg (2800 - 7000 RPM) (I've tried up to 40deg)