Ben, go with an 11 inch booster, and the master will be the squared off type w/bleeders, not round like a "309". As for the conversion kits, I think they are similar. However, I never did one.. I personally don't care for Ground Up I have had bad experiences w/them. I would check National Nostalgic Nova's website. I know they have this stuff plus if you have a tech. question you can ask them directly and get someone on the phone that knows a little more than just a parts salesperson...
Just my .02 Hope I was of some help... Rich
