Something you might want to check is the gyometry from the lobe to the push rod, rocker and make sure the rocker is centered on the valve stem. Talk to a person who regrinds cams for a living, he should be able to solve your problem. This isn't my first rodeo when it comes to engine building. To bad you can't change to a HYD roller, they are different then solids. The lobe seperation and valve overlap you have to pay close attention to and you will lose a little top end. Just some freindly advice.
My opinion without looking, CAM.