Ok, I have inherited my fathers 89 Allante. Car was running great. Just tuned up, new plugs, wires, couple new injectors. Running smooth then just all of a sudden stopped running when I went out after work. First thought might be fuel pump. But that is fine. It had stalled on me a couple times while idling prior to it stop running. Anyway, took to my mechanic(who is good) and he can't figure it out. Said he replaced parts in distributor, but there is still no spark at all. And there is power to the distributor. We are at a loss? Any help? Are there any common issues with this, a module or something?

Thanks.