Ok negative

The original motor had a camshaft installed my lingerfelter. He blew that motor up. Then came to Cartek for a built motor to his specs for 20k. That motor made 572 or whatever in the original sheet. The dude ran it too hot at the track and killed the second motor. Cartek decided to help the dude out with a 3rd engine. The harness had issues and the motor leaned out or something. The 3rd motor was torn down for youtube. He just negelected to say how many motors he has had.

So motor 1 blown wth lingerfelter cam install(mind you they are a VERY reputable shop)
then motor 2 blown due to neglengence (if you are going to track a new motor at least watch your gauges)
then motor 3 which I see as the "charity" motor. Blown due to harness having a short in it somewhere(which cartek also repaired for him)
motor 3 breaks and he tears it down and is mad that parts from motor 2 are not there. He then whines to the internet that cartek scammed him and he is a poor pitiful victim.

So once again not trying to defend either. Both sides aren't telling the full truth but the facts should be considered before everyone jumps on the cartek sucks bandwagon