Seeing tourque & 4 - 2 ' switch ' are somewhat ? unique requirements ( Tho Im sure relative to powerband ' step ' in a cycle engine ,
Chamber / Squish Band configureation , offset . Multi Port & Loop / Baffled seemingly two varying configurations .
Theres neumerous ? books on 2 stroke tuning ,
Pioneers Walter Kaaden , Ernest Degner , and the BSA Bantam race forum might be places to garner info .