FFR428, interesting that a '63 H.R. motor came with a steel crank. I guess the question would be is THIS motor an original "H.R." motor, thus possibly a steel crank, or just another top oiler block that got H.R. heads at some point in it's history.
My H.R. heads just BARELY fit under my hood scoop! The air filters actually stick through the hood and can be seen in the scoop, which is cool.
One of the questions I asked myself when I 'down sized' my motor (smaller cam, lower compression) was did I really need the high riser heads? Same question might apply to a tunnel port, all though a tunnel port just LOOKS so good, yeah, you NEED one!
But both intakes will flow a LOT of air, if your not turning 6500 to 7000 rpm did you really need them?