I'll second Frank on this one. I got my setup from him, great guy and has helped me with more than just the original purchase..
I went with the F1R for my Camaro, and I did have some hood clearance issues, but I wanted a cowl hood anyways, so it worked for me. But Jody is right I think if you run the low profile carb hat with a dual plane manifold you can get it to fit under a stock hood....