dbane261, panic,
jimmy6 posted this
thread about offset keys a couple of years ago. Call Cloyes.
I have seen some dyno data and charts in textbooks that indicate that most engines realize about 90 to 95% of the potential gain due to increasing compression ratio. I was trying to make McGurk's porting look as good as possible. If 5% of the gain came from CR, the porting that was done in 1955 would be even less effective than I calculated above. I am anxious to see what the CNCdude does with his head. I've believed that the biggest problem with the 235-261 intake ports is the sharp radius on the inside of the first turn, and it is not easy to increase that radius.
