lock out dist.

I've recently gotten my car back from a shop that tuned it and it's running great. But theres this guy at work that races at bandamere and says I't would run even better with the distributor locked out. It's currently 22 initial and runs fine but some times starts a little hard but other times fires right off. I've been reading about this and what I've read says it might make my car hard to start being locked out. It's a mp electronic distributor and orange box. I hate to mess something up now after it's fineally running good and not fouling plugs. But if it would make it even snappier I would be willing to give it a try.
He told me to bring it in and he would set it up for me. What You think.