He has made very detailed descriptions of his projects. Shows a good deal of knowledge. Also shows some flaws. Like doing important mockup in the final assembly, and accepting a 0,1" piston to head clearance (yes, I know a Hemi needs more than others on the sides of the domes, but 0.100" I would say could be improved upon). Maybe this is just examples in his presentation, hard to tell. Then he is doing Hemi restoration, not race buildups (in the example) You could challenge him on this. You could ask for offers from your potential suppliers, also to see where the difference is and if it is worth the extra $$$ My