Talk to a couple of Cam Suppliers. They know what to ask you and can tell you what they'd recommend. Make some analytical decisions and you'll know which one to use . .
Just my opinion, but I don't think you have enough converter . . You're gonna want to leave on the blower so depending on the pulley, and the weight of the car, I'd bet you're gonna need one somewhere around 45-4800 rpm . .
But I'm a high altitude racer so it might be a little different where you're from . .