I just installed a Super B Special with 150 injectors. I have a Air Dog 150 and a HO VP 44. This is my problem. Under load the fuel pressure stays rock steady at 17 psi. when I slow down or stop the fuel pressure drops to 4 6 psi. Then shoots back to 17psi. Any ideas?

 

check your fuel lines. It's possible that when the pressure is let off air is seeping into the lines for a split second. Cheapest and easiest thing to check

 

I just upgraded my Air Dog. I had a 100 and upgraded to a 150. The new Air Dogs use a quick disconnect were my old Air Dog used a Barb to connected the ends. Im not real happy with the new type connectors. Looks like they could blow by.