87 Ramcharger ignition questions

If the current system is working correctly now, I fear you will spend a lot of coin for just a little gain.
Put a timing lite on it, and see what its doing. Map it all out. You may have to go to the service manual to see how its supposed to work.IIRC, some of those LB systems had unusual ways , and times of working, and many requirements had to be met.
But yes, you may see some improvements in drive-ability.
I have an 84 D-100 that I removed the LB from. It seemed to be a little better. a little....