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07-22-2017, 11:26 AM
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Senior Member
Join Date: Feb 2002
Location: Southeast Michigan
Posts: 910
Likes: 70
Liked 239 Times in 114 Posts
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Re: Hollow stem intake valves
In the rule book , it says "Any aftermarket steel valve permitted, must retain stock head and stem diameters" . Says nothing about hollow stems being illegal .
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