Hey, I am just a bookworm rodder who reads spec sheets and articles so I don't know yet how well my 350 will run with a Crane "street cam", Edelbrock 600 CFM and Edelbrock Performer EPS, BUT communication from Edelbrock tech folks led me to believe that while there are several models of Performer dual plane intakes, the Performer EPS is the latest, most optimum for low rpm torque. So, before you go through a cam change why not just get a Performer EPS dual plane manifold and see if that helps the low rpm torque in terms of wheel spin or something you can feel in the seat of your pants. Check out this site:

http://www.rjays.com/Edelbrock/Performer-01.htm

Don Shillady
Retired Scientist/teen rodder