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bert powell · 01-30-2020, 10:23 AM

Who is going to be the first to take a bbc oval port head and mill 1" off the intake flange of head below the valve cover bolts? Should gain 50-60cc to open up the port.

01-30-2020, 10:23 AM	#2
bert powell Member Join Date: Jul 2002 Posts: 243 Likes: 36 Liked 34 Times in 12 Posts	Re: NHRA 2020 Rule Amendment SS Intakes??? Who is going to be the first to take a bbc oval port head and mill 1" off the intake flange of head below the valve cover bolts? Should gain 50-60cc to open up the port.