I just read your Q-jet book & I'm trying to make a intelligent decision opn whether to tackle doing the modifying myself or get in line.I've done a lot of Holley's & several stock q-jets.I must have missed some info on the Edel. #1910 accelerator discharge holes.The rest of the info I understand. I think,I traced them from the main body chambers,thru the air horn gasket,to the Air horn holes.Your Edel. receipe says .028-.032, I measure the hole in the air horn hole at .071. Have I missed something or did Edel. use too big of a holes or is the restricter's not there,it's in the main body chamber's? I see the 2 pump chambers(.125) in the main body that leads from the pump/pump ball hole/front plugs area & leads to the top of the main body,then on to the air horn. I've attached a few photo's.Thanks Kelley