That’s the way I learned. Ehhh, what can I say? I started this crap before there was an internet! Learn by doing. Ever wonder what this intake does, how that cam is, get it and try it out.
Do you remember the old catalogs that would place a 2K to 10M plus rpm range on the T-rams? It’s because there actually usable down that low. It’s in the runner length and the T-ram plus is line of sight. Tuning can be hard on those and even more so if you don’t tune a lot.
Because he may not know what intake flows what never mind the variations between the exact same intake.