I think what it comes down to, is you need to be honest with what you want this car to be and how often it'll really get raced.

If it's going to be used for the majority as a street car, I'm 100% on board with Andy that picking a smaller cam will make it start/idle/drive/cruise a LOT better.

If it's going to be used for the majority as a race car, then leave the big cam in it, and put a loose converter in it so it runs good at the track.