hydraulic lifter problems

I think you are having lifter problems and getting some coil bind.....you need to get the coil bind problem fixed before you go winding it up again....crashing stuff into each other is not good. Just because that mag used 1.7 rockers doesn't mean they didn't clearence the guides for the lift. I would call Scott Brown and look at getting a new solid lifter cam if you are wanting to run it up in that RPM range......I know you are only going to the track a couple of time a year but you are sounding like you need a solid lifter cam. I run a solid on the street two and if you have good valvetrain parts valve adjustments are far a few between.