I have always ran Huges cams and I have a simular set up to yours in my 69 360 Dart. Though I think the performer intake is going to hold you back, I run the LD340 Edelbrock that performs circles around the Performer. This is the link to the cam I have in it. Also you need a good converter, I had Frank lupo built the one in my car.
http://www.hughesengines.com/Index/...ZW5naW5lcw==&level1=Q2Ftc2hhZnQ=&partid=21851