or you could have gotten a stock old points type distributor for next to nothing and put an electronic conversion kit in it for $35- $60 bucks depending on where you bought it from and dropped that in it with out any modifications....Its funny that you just posted this cuz I just got home from altering my fire wall for my hei. I will post some pics tomorrow night for you guys. And yes it would be easier to buy a Msd unit if you wanted to spend the money! My buddy gave me a HEI unit complete with plug wires and all so thats $0.00. I had some sheet metal laying around and my room mate happens to be a professional fabricator. So with those ingredients we went for it. Basically you have to move back the firewall back a good 1 1/2". We went 2" so I still have room to get my hand back there to adjust timing. Its a good 3 hours of work with the right tools and lots of skill... But It was free.