Stock Rocket ~125 whp - Carp head/cam/pistons 240whp 92% increase
Stock Bonnie ~55 whp - Carp head/cam/pistons 95whp 72% increase
Stock 1200 motor ~90whp - Carp head/cam/pistons 140whp 55% increase
seems like history would suggest 140 is too conservative a number....
Given Triumph tendency to leave their production motors in a pathetic state of tune, and Bob's ability to find HP in a motor that was left on the table, 150+ might be very achievable.