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Been here before. Do yourself a favor and start buying the parts and don't drive the car. It's very likely you bent some pushrods and collapsed or damaged the lifters. And it is not uncommon that 100-500 miles AFTER the money shift, that more lifters randomly fail, especially the DOD lifters.
Replace all rocker arms, all pushrods and all lifters. Verify none of the valve springs are broken. The job is tedious but not that hard as long as you have a good torque wrench to get the heads back on properly.
Most importantly, do not drive the car or run the engine. You don't want any metal on metal friction material making its way through the engine. And you don't want and collapsed lifters smacking the cam lobes. Both can start premature wear and eventual damage of the bearing surfaces and cam lobes.
The good news is that this mistake usually only hurts the valvetrain, which is easily replaced, and the engine continues to live a long healthy life.
PS, hope you learned to not let ANYONE drive your car aggressively again.
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