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Sounds like you need to do some research on hyd roller lifters. Because you must buy junk. They make a tool steel hyd roller lifter that's good to 7500 with no float.
id like to see dyno proof of a big block mopar that can make power to 7500 with a HR.
There are BBC motors running over 7,000, sold for fast brackets making 1,000 hp with a juice roller. The Mopar camp is behind on what is available and what works, in a lot of cases. Take a look at what can be done to lighten the load in the valvetrain, and that would be worth a lot of rpm over what the average guy tries to throw together to run a juice cam.
Last edited by gregsdart; 09/11/13 11:16 AM.
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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