help vortec 350 tbi programming

[tamperedchevy]

I have an 89 chevy 1500 350 gmail goodwrench engine
With these upgrades:
-vortec heads 185cc runners 2.02 valves
-Comp cams nostalgia 211/218exh. Duration@.50
420/426int lift
-Trick flow chromoly 7.75" pushrods
-Scorpion narrow body 1.5 full roller rockers
-Longtube headers to 2.5 duals,x-over, no cats
-Extreme EFI 50mm TBI
-Dual plane high rise air gap intake(summit)
-New stock injectors with 18psi
-3 wire o2 sensor
-No egr
-Custom starter chip

I have moates stand alone software to burn, tunerpro to adjust and winaldl to log. Burn2 unit and g2 adapter to use the better chips.

My idle BLM is 80. From 90 to115 while driving. And I have a bad hesitation after it warms up but only from a low rpm or stopped throttle smash. 21" vacuum but the cam is only .20 over stock(does this sound good?) no vacuum leaks unless it's in the brake booster.

I lowered my BPW by 30 and in Egr. From.71 to. 52 off someone's recommendation. It didn't do much of anything is there somewhere else to adjust this. Where should I go from here?

Timing is at 4* advanced with that spark wire unplugged
I've read lots online on this but after weeks learning and days logging and programming I figure I need to figure this out. So here I am