they are the 84 cc eddy performer rpm's. i bought them from aerohead (indy) with a stage 1 port job. basically a clean up blend. nothing fancy. the plan is to install 3/8" pushrods that are the correct length for the new installed valve height and run em. I am excited! Jim chuckled when i asked him if i should see gains from the basically box stock eddy heads. If these heads flow as good as they look then i expect a dramatic hp gain. not to mention the 6cc combustion chamber drop. I will be picking up little over 1/2 point of compression which is the weak link in my current combo. I have a big cam with long duration and overlap. I think the compression gain would be noticeable on its own.
