Yeah, you really don't need it but it could help the engine to run strong with better torque and economy, so why not?

First you have to calculate the rpm at which you are most likely to spend most of your time. The torque peak needs to be close to that rpm. This will probably mean you will end up with an intake lobe of less than 210 degrees.

Then you need to know your real compression ratio, or as close as you can guess.

Next figure out what your intake and exhaust tracts will look like. Manifolds or headers?

Then call someone like Hughes or some of the board members who specialize in ordering custom grinds. I bet your cam will be close to an off-the-shelf cam with possibly a tweak in the LSA or change of an exhaust lobe. Contrary to popular belief, having a customized cam ground isn't all that expensive. And most of the major grinders will do it quickly. Comp advertises that they do. Don't forget Crower either.

R.