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6 of 8 other people found the following review helpful
 
Cheap and screamin'
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Tony and Jemal put these on my 1330 rebuild along with the Pierce big-valve aluminum head, MM103 cam and Hepolites. Just compared to the stock rockers I don't know if you'll notice a difference other than the car wants desperately to soar to the higher rev ranges once you're at 4000 or so. It is like a big electromagnet pulling you forward. My HIF44 wanted a new jet to match as a result, and that is pretty much a requirement as well. Check with MM about the jet. I have set it at 0.013" and it ticks slightly, but based on the tech article here and otheres it looks like some experimentation is in order. It is holding the setting better than the stock rocker. It also has end play like the stock rocker but nothing to worry about.
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