Ignition switch power interruption from run to start

Hi fellow Moparians!

I've been running a Sniper EFI on a 1972 LA 360 in a 1967 Dart GT Conv. for the last few years. When I turn the key from start to run there is an interruption of power on the ignition wires. Not a big deal and has been like this forever but it does cause the EFI to reboot. Doesn't cause the engine not to start but I would rather the power remained on during the transition. I have install an ignition relay to reduce the current on the start run circuit and the bulkhead connectors. I have also bought but have yet to install a Hella Time delay off relay that will eliminate the issue but I was wondering if an ignition switch is made for this application that does not drop ignition juice during the transition from run to start. Is there such a beast?

Thank you!
Charlie