Intake Choice???????

I haven't used the Weiand Xcelrator.
I have used the TorkerII.
I would not use the other two intakes.
I would look for a dual plane. Your low gear ratio and very tall tire are going to make this a hard vehicle to get going foward.
Perhaps some experimentation is in order?
What gear would you use 4.11 or 10 or 3.73. I mean it is a 8.75 I could just build a pumpkin to go silly fast with and, one for cruising.