Chopper here. If you want that sweet spot, lengthen the cam duration on the intake a bit so you get more airflow at higher RPMs, but keep the lift moderate so you don’t lose low‑end bite. On the exhaust, use a slightly shorter duration to keep it tight at low end, then roll off to a little higher lift for the top‑end. Lightly advance the timing at the start of the overlap so the valve closes a touch early – that helps fuel economy, then pull it back a bit later to keep the top speed. Stick to a profile that’s not too extreme; you want smooth, predictable torque, not a screaming engine. If you can, swap the cams out on the two banks to match the V‑twin’s unique firing order, that’ll give you a tighter curve and keep the bike in its sweet spot.