In those early years there was a ton of miss information!Same things still happen!When it comes to the tunnel port program I never say never at all!In the short time I have been doing this stuff(about 20 years)I have run into so many engineering anomalies.We do know there was 25 303 SCCA engines and "about" a 100 400 crate engines but engineering try and fails and stuff out the back door its unbelievable.A few years back I bought a unmachined 400 intake from a guy about 40 miles from me,he also had a cut in half V heads used for flo testing diff valve size.He also has a set of first gen short deck exhaust manifolds.I have been trying to buy the exhaust from his family after he passed away.There is a lot of tunnel port parts still showing up every month.FYI,engineering never refered the program as RA V VI or VII.It was just refered to as the "Tunnel Port " program.Remember this stuff was on the drawing board at least 55 years ago!Tom
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