According to Randy, the set up makes about the same HP as the single 1 x 4 Holley on the Cobra high rise but having driven both, this set up makes more torque because of the progressiveness of the linkage.
In T/A, the 2 x4 's were also the set up of preference vs. the single 4 Holley so that tells ME allot right there.
Period advertising states a 50hp gain over a single 4v. That doesn't seem to be supported by current thinking SO I can't prove it's 50, but sumpin' goin' on there? Yup!
You have to drive this thing to understand. You can't unless you do.
This one's reproduced (Blue Thunder) and the C6OA isn't. Chances are unless you are using the old matching GT40 heads, there won't be much of a difference? That was my thinking anyway?
When the secondaries open, there is this WHOMP RACKET that they create.
