[WADS56]

I did not have to do any grinding on the lifter valley to make them fit. I know what he is talking about though, every two lifters are connected together with a bar. Mine came close but some people may have problems.

As far as valvetrain noise go's mine is loud. I know it is adjusted right so that is not the problem. When I am under the hood and it is idileing it's real loud. When I rev and hold it at 2000rpm it will rattle your ears. I have a gear drive though, so that adds to the noise. Think about it... You set preload on a hydrolic cam so there is no room for the rockers to slap around. On a solid cam you adjust the valve lash around .025 when hot so you will get a constand 16 smacks at rapid fire when the engine is on.