Holley sniper install

I'm really glad I found this thread. I'm trying to install a Holley Sniper EFI on my 69 Barracuda currently. Not having much luck. My gas tank got a leak, so I installed a new gas tank with a Holley EFI Pump in it, ran new fuel lines (fuel and return) as well as power up front and have been working on getting the wiring correct to get the system working. Installed the Holley Sniper, hooked up all the wires following their wiring diagram, but haven't gotten it to start yet. I have a 318 V8. Part of my issue is long ago I installed a Mallory Hyfire 4 and later a Mallory Unilite Magnetic Distributor. Holley's wiring diagrams don't show exactly how to wire up to that (it is old - installed in '94), so I've tried a few combinations. My last attempt was to take the Hyfire box out of the system and wire the Unilite Distributor directly to the Holley EFI - now not getting any spark. I'm going to call Holley on Monday morning and talk with their tech support, (tried that earlier this week but was on hold for about an hour, and dropped the call) and verify I have the wiring correct. I'm kinda thinking I'll need to get a HyperSpark distributor so everything is Holley (as mentioned earlier in this thread). So much for plug and play, but sometimes installing newer technology on something older doesn't go as planned. Looking forward to when it's running!