map adjuster for renix stroker...

4.6 titan renix stroker, 2.5 exhaust, 24# ford injectors (39 psi), stock 39psi fuel regulator. with the renix head im running rich, as in black sooted plugs, and purchased all that i need to make the adjustable map. searching on the voltage i might need, all are from 91+ strokers with 4.25v to 6.00v. anyone running this set up or knowledge on this set up to what voltage for the map would be best is appreciated. also i do have the 59. bored throttle body

maybe switch to 19lb injectors?

Each engine varies as to what the voltage needs to be. The best way to set it up is on a dyno with a tail pipe sniffer, but a straight tail pipe sniff at 2k rpms and you can dial in the air fuel ratio you want.