Pontiac - Street No question too basic here!

          
 
 
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Old 04-19-2020, 02:28 PM
Steve C. Steve C. is offline
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Join Date: Dec 1999
Location: Liberty Hill, Tx. (Austin)
Posts: 10,929
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"The amount of lash has no effect. It's the velocity at the lash point that hammers the valvetrain. A .030" clearance ramp doesn't have to be any harder on the valvetrain then a .010" ramp. Clearance is clearance."
Mike Jones
Jones Cam Designs

Source : https://www.speed-talk.com/forum/viewtopic.php?t=11597


( Information provided in this post does not represent any endorsement. And unless specified it is not based on personal experience and is offered for general interest only )

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__________________
'70 TA / 505 cid / same engine but revised ( previous best 10.63 at 127.05 )
Old information here:
http://www.hotrod.com/articles/0712p...tiac-trans-am/

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Best time 5.13 at 140 mph (1/8 mile) , true 10.5 tire, stock type suspension
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