hello, thought i would dig up an old topic
im undecided on cam shaft, len is running 72 degree cam while im in favour of a 74 degree cam. Is there anyone running a 74 and what is the rpm range that it kicks in? lens (engine builder) 72 cam sounds almost stock. Im running 10/1 comp, flattops standard bore, balanced crank, and triple 40 carbs the head has been tidied up. inlet matched. F54/N42 combo
any advice