I don't think the Sniper line has that capability. It's an entry level efi. The Super Sniper will have those configurable inputs, I think. Otherwise, it's on to the more expensive units.

74 Challenger, bought it new. In 1978 I replaced the original 318 with a 446 and 727. Mild cam, Jardine headers, and Holley Sniper EFI.
New engine! 511" RB, Edelbrock Performer RPM heads, Eagle rotating assy, Comp hyd roller cam, Doug's 2" headers.