ORIGINAL: poco242
I have found the best power increase I could get was by enlarging the transfer ports. On most engines they are allready large enough or can not be enlarged.
Porting is where the big power is, all right. But I don't want the hours of testing and research that goes along with it... I was just wondering about the finishing of the engines that are out there and if there is much left to clean up. Given the industrial usage design intent of the conversion engines, I would expect there to be a few rough edges that could use cleaning up for some free power. I guess I will have to wait and see what it looks like when I get in my shop and pull the cylinder off the cases to really know what I've got.
Thanks,
Mark