340 help/advice

Unless the pistons are truly .018" out of the hole and the chambers were cc'd to about 63cc, you're compression is likely lower than the advertised spec...just FYI.

That being said, in the same vein as duster said, your vehicle's setup and intended usage will determine what you'll want so that the engine will perform satisfactorily. There are quite a few folks on here who'll steer you away from the thumpr or whiplash types of cams...buying a cam for sound only will leave you unsatisfied...better to get a cam matched to your purposes and build.