Cool build no doubt. I didn't know that was yours until now. You definitely had a lot of time into it, and thought. So basically what I am getting from this is a bigger bore/shorter stroke is useless in this contest? Say like 4.320x3.750 for example. What happened on the whole exhaust flow? The intake flow seemed pretty strong. That's actually not that big of a CSA. Must of been aiming for velocity. To pay someone to do the machine work on a motor like this has to be crazy. What's it cost to build one of these motors? Thanks for the replies, details, Info.