Quote: Well Dog, The Bulldozer that graded my yard had 40hp, sure pushed a big pile of dirt. Moral of the story is, You race with hp you ride on TORQUE, those old big 4's had plenty of torque but did not spin fast enough to generate good hp numbers.
I have ridden those old inline 4 bikes and not much TQ there either for the size. I have a good friend who rides an Indian 4. Many of my friends ride old bikes, one rides a 20s HD with exposed rockers, another a 36 Knuckle, another a 50 pan EL, another has 2 Indians a Scout and a Chief both completely stock and original paint (the Scout is original rust can't see much paint anymore) another a 58 Triumph 500 with a 750 top end and crank and rods, another a 72 Bonnie that Paul Sr. owns now etc... Some great bikes.
I learned all I need to know about life by killing smart people and eating their brains. Eat right ,Exercise ,Stay fit, Die Anyway!