Quality long tube Headers and a 4-speed

I think you have it backward, the Super Comps are a thicker gauge steel than the Comps.

Give Hooker's tech line a call.

They told me straight up that SCs are thinner for weight savings.
They also said that the SCs are NOT equal length or tuned in any way for additional power.
It's all about weight, nothing else.
You pay more for less with SCs.