750 Edelbrock issue

Don't care what Edel says, the AFB/AVS carbs will take a LOT more pressure than 5.5 psi. What more pressure does is raise the fuel level slightly, which might be what Edel is warning against. Flooding on AFB?AVS/TQ carbs is not a problem [ within reason ] because of the high leverage of the float assy. I have run 10 psi at the track to raise fuel level, never a hint of flooding.

Plus, the E carbs come with a tiny 0.0935" n/seat. In contrast, the Carter Comp series AFBs had 0.101" needles & seats. The smaller size can handle more pressure before it is overcome with excessive pressure. The Carter mech strip pump M4862 for BB Mopars is rated at 8.5 psi. Street pump M6903 is 6 psi.