i know that tornado is a old fuel but i was having also big luck with it over all these years with my novarossi and other engines ,i have tryied almost all and end up using tornado or o donel , rapicon was a strange suprise also in drag races the 30 per cent. i dont want to start any fight just the good recipy the latest 5 years was 16.26 -16-80 engines and tornado or donel.what was your good set up recipy stroke profile and fuel i mean