HemiEd
When I read the early design info on the slant, they started with the 170 and that was the basis for the engineering. All the design was around the little engine. When they enlarged to the 225, they had a ton of problems and one engineer said it was a P.O.S. Now we know that is not true, but it got me thinking about port sizes and stuff. The Hyper Pac was run using the smaller engine and I have been told it will zing to 7 or 8K with very few problems. The weight break is better with the little engine and I just want to try making it work. I have a lot of time running the 225 with the Hyper Pac and none with the 170 so it will be a learning experience. Plus I know the 170 will allow me to run an air cleaner under the hood without trimming. Not sure about the 225.