I've been a mechanic for a few years and now I'm working in a performance shop and it has inspired me to want to learn how to tune... I did a little searching around for classes or schools, but would prefer any online classes/courses because I have a dyno I can usewhenever I want pretty much to test what I learn..  I found hp(high performance) academy which seems to have some decent classes but I find reviews and idk, I just cant ever seem to trust reviews sites so I want to see if anybody here is familiar with this site and would recommend it or not. And/or if anybody has any other good recommendations of sites or schools to look into.. Very serious about learning so any ad is will really be appreciated. Thanks

I think they also have a forum, where the guy from those free vids is active on. So I guess you can get a bit of a gauge of the quality of feedback you may get. Seemed alright.