A) That HEI write up for slant sixes says: terminal 87 "is your power output. Connect this to the coil (+) and to the module's power terminal." So you're saying this is incorrect and only connect 87 to the modules (+) terminal?
B) The image attached is a 6280 with a brake booster port. You'll notice on the attached image that there is only one EGR fitting. So I have one EGR hose. My question was to which EGR fitting on the 2280 do I connect it to?
The 2280 diagram you've attached- interesting how the labels are all incorrect on the lower left diagram image.