Hi Mark thanks for quick reply. much appreciated. Forgive me, - i am just a "wannabee" mechanic , - but are the cams not a part of the top, and then will be used because i move the complete top from the RS2000 ?

can i use normal oktan 98 gasoline for this setup, or is it special racing fuel ? need to add Lead substitute ?

my "project" is mostly because i have a hard time finding RS2000 engines, so if i can keep gearbox and all electrical + the top of the RS2000, and "just" replace the destroyd bottom RS2000 with galaxy 2,3, then i am happy. (i can get galaxy 2.3 engines)