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ss3011 · 07-22-2017, 07:48 PM

In Super Stock the valve stem needs to be the stock size , but aren't you allowed to use necked down stems near the valve head , like the Manley "Pro-Flo" style valves ?

07-22-2017, 07:48 PM	#4
ss3011 Senior Member Join Date: Feb 2002 Location: Southeast Michigan Posts: 906 Likes: 69 Liked 237 Times in 112 Posts	Re: Hollow stem intake valves In Super Stock the valve stem needs to be the stock size , but aren't you allowed to use necked down stems near the valve head , like the Manley "Pro-Flo" style valves ?