Took it out for the maiden voyage...

Break-in per Jeep 4.0 Rebuild by Larry Shepard.
Good book, but I wasn't comfortable with his target RPM ranges. This is excerpts from the book

Phase 1: For 30 min ~ do not use full throttle and try to limit the engine speed to 3,000 rpm or less. During this time, try to vary the engine speed

P2: For the next 30 minutes, move the engine limit up to 3,500 to 4,000 rpm and...

P3: For the next 30 minutes, use the new RPM limit of 4,000 to 4,500 rpm and use varying throttle applications from light to medium to full...

P4: For the next 2.5 hours of engine operation, the engine assembly is considered broken-in and you can begin to run the vehicle normally...

...I kept P1 under 2,000 / P2 under 3,000 and then a couple 4,000 bursts.
It just didn't feel like I was getting enough fuel over 4,000 to run well. I'll have to take it to a tuning guru after a couple oil changes.
****Love any thoughts and feedback from those that have done engine rebuilds on their break-in experience****


Otherwise, ran like a dream. Smoother than before. Power. Happiness till the next project.
~ upgrade breaks all the way around + double diaphragm boost.