I have a stock rebuilt e50 port matched with a 65cc metra kit. The thing has a bunch of shims and I put them all in, the thing makes 150 psi of compression after 100 miles of brake in. What should the compression be? I wonder if I should take a shim or two out to up the compression. I searched and couldnt find anything. It was a 2hp motor so I think it might have a high torque head but I dont know much about that.
Thanks for the help.