Holley Sniper Issues

If it starts with fuel it means the MSD is getting a signal but the Sniper is not have you set the input type in the sniper setup also watch the sniper screen when cranking it should show RPM on the onscreen tacho about 150 to 200 enough to command the Sniper to spray in some fuel . Does it do the prime sqiurt when the key is turned on if not turn it off & on a few times could have an airlock . Also do you have a return if the lines are reversed the onboard regulator will block the fuel try checking the return line to see if there is pressure .