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my 517 Max wedge loves turning 7200 with a fairly healthy Bullet Hydraulic roller, iv'e had to trigger my tach shift light sooner because it gets there so quick. Pulls like a solid roller in this motor and throttle response is more like a comp eliminator car than a lot of even solid rollers.

My heads (Chapman/Zeus Stage VI's) also run the Race W2 billet hold-down blocks, I believe they are much more stable than cast in pedestals on big blocks at higher RPM. not sure it contributes significantly to the valvetrain stability but I'm quite sure it helps some.

Ron Silva I think runs the same Bullet HR (if it's not exact it's PD close) in his 501" small block and that thing revs like a banshee too. I'm real happy with the Bullet HR grinds, I think Bullet and probably the Cam Motion LS grinds are on the cutting edge of where you can get with a HR lobe and stabil valvetrain.



Wise... whats the spring pressure on your Bullet HR
and if you dont might what are the specs... I'm thinking
I will change my 416 over to a HR vs the solid roller
in there now when I get that engine out of the Rampage