EFI, Crower intake, idle problem

[69 L88 Camaro]

I could not run in speed/density because of the resolution of my fuel and spark map was not adjustable for vacum. The cylinders will balance pretty close with the uni-sync. I set the venturi at the lowest pair and target that with the rest.The fuel on the underside of the throttle blade is reversion. The air moves up and down in the runner alot. I am thinking like 4 or more inches. I have tried pointing the nozzles up like F1 engines and it sprayed fuel out of the runner. Ugly. I have had made more power with constant flow fuel injection that way. Maybe I could not get the nozzles low enough with the fuel rails. Oh well I gave it a shot. Maybe more than 4 inches. Read it, never measured it.