No spark

Hi all, first time poster from Oz. Here's my problem. Have recently installed a new ignition system consisting of a MSD digital 6Al,blaster hvc coil and mopar dizzy. Was running great until last Friday when i decided to go for a drive. Car turned over no worries but had no kick. Pulled a wire and got my daughter to crank the engine alas no spark. Thought maybe it was the coil so i connected my old one still no spark. No obvious loose wires or bad earths. It's got me stumped. I'm new to Msds. Am i missing something? Thanks in advance for any advise.