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I still have never seen one snap in the middle like that. I used to run 3/8ths .135 wall manleys and never broke one.

I now have 7/16ths .165 walls and picked up 700 rpm. So my old ones were flexing.


No kidding..........man that really makes one think about this stuff. How much spring pressure you running on that beast.


Hmmm..... 700 turns on just a push rod change...... Wow




I did the offset lifters at the same time.



BB, TT5,Procharged 3300lb Street Car 4.79/154