I will be putting one on my 73 RR 340 as soon as my body guy is done with it. I want to run E85, which is common around my area, but not across the country. I will be adding their dist and a 6AL box, with this setup i will be able to reprogram it to run reg gas or e85 with just a hand control switch, I talked to MSD quite a long time at SEMA and sounds like this is the perfect setup for me.