Not Ranked
I`ve got a medium riser Blue Thunder intake on my 427 Galaxie . Just went to the garage and looked at it . As you describe , it has the same markings in the same places . You probably have a BT intake .. mine is a dual quad unit .... and it outperforms the original intake by a wide margin . Mine has been mistaken many times for an original medium riser ... that`s how close they appear to each other .
Bob
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