FAST XFI or Holley Dominator or ?

[64duece]

The 58x stuff was primarily used for misfire detection. 4x Crank/1x Cam we use quite often with excellent results. Holley now offers a Hall Effect sensor to directly replace MSD Mag sensor for a digital conversion. We use the EFI Connection 1x Cam Sync drives in a few dozen applications...never an issue.

IMO, if your spending this type of money on EFI, its wise money spent to get the best it has to offer...SEFI and Ignition Control should not be left off the list. DIS/CnP is a nice feature bit not gonna make or break from a performance stand point.