Before you do any more work or start buying parts for this engine you really need to figure out what you want it to do for you when your dome working on the motor
If you don't know what you want to accomplish, you may never know when to stop: work :
BTW, what does low compression have to do with using a Whip Lash grind cam?
One other thing to keep in mind, if this motor is a later external balanced motor you need to run the correct external weighted torque converter and matching year external balanced balancer, AKA vibration dampener