Posted by Vaughn [172.69.70.38] on Friday, February 21, 2020 at 11:02:52 :
In Reply to: Enlighten me: increased HP over the years.. how? posted by DDD [172.69.68.132] on Thursday, February 20, 2020 at 17:44:29 :
As others have said, engine design improvements. 57 was the last year for any increase in HP and torque. If you really are interested in what can be done to increase performance and how to do it, buy a copy of "Six-Cylinder Sidevalve Performance" from Victory Library. Not sure if it's in current production.