273 Supercharged...ITS HAPPENING PEOPLE!!
Sounds like you're gonna have a little small black screamer on your hands. I am going the other way on mine this time. I have been Supercharged for a very long time but the lure of the stroker motor has found me. So I am building a 10:5 or 11:1 416. In fact I am going to the machine shop today to kick things off. Just so you know, a blower turns a 273 into a animal. I was still building my engine when my blower arrived so in order to try it out we put it on a 68 Satellite with a 273 in it. Wow what a difference, we went to a cruise and I watched my buddy smoke a set of perfectly good set of Goodyear Eagle St tires down to the cords LOL. YOU are gonna have FUN with this. Good Luck