one of my best buds runs an enginetech 860 and it's hit and miss. When it is dialed it's a rocket, but it has been off for new cranks 3x in the past 2 years. And it get's a once over and installed every time by one of the best in the industry.
I love to ride his sled, but I would never own it. He has enjoyed the past 3 seasons on it and is selling it in the next few weeks.
But no lie, the sled is a rocket. He has jaws twins, boss nos, and a ton of CR goodies. Dyno'd @ 230hp w/NOSS. If you love wrenching give it a go, if teardowns are not your thing.......
