ignition system ?????

I would first get your distributor curved at FBO. I've got his whole set up, although I just installed a mallory hyfire 685. It has all the bells and whistles, digital rev limiter, 2-step, start retard, window switch and selectable retard (for nitrous). It's just a little bit more than the MSD but has all the features in one piece. I've had 2 MSDs fail on me and I'll never go back. Ask me in a year if I'm still a fan of this Mallory. I mounted it inside the firewall and put an inline fuse on it so hopefully it doesn't fail like the MSDs did.