I can not say anything about the other builders you are looking at but I can say I ordered a JB engine Jan 27 yes that would be JANUARY and told I would have it in hand when my customer came into town beginning of April no problem. After not hearing a word from them we started calling them mid March, 7-10 time a day with no answer and leaving VM w/ no call backs. If I did reach someone I was told no one was there to speak w/ or even more annoying got put on hold someone would pick and say they would be right with me and "click" hung up. Finally I emailed them April 30 and n May2nd got a response that they were a little behind and they did need a part I had if I could please send (arrived in their hands May 12) it their way and told engine would be completed "two weeks from today." So here we are June 30 and I have no engine, no phone calls to let me know what is going on, no emails nothing!!!!!!! But I can tell you my customer sure is in contact with me a few days a week.....
. I know you hear great things about their engines but their customer service and being way off on the time we would have our engine is horrible. Problems arise no doubt but not to call someone and let them know what is going on or returning calls is ridiculous. I've waited to see just how long it would be before they actually call me. Even put a letter in the box asking them to call me to discuss the balance when they knew for a fact they had a shipping date. Never again will I use them