Quote: The E-bodies are not all that light as they weigh just about the same as a B-body if equipped the same.
I'm going to have to disagree with that statement.
It's been shown here that the E-body '71 Cuda's are extremely light. Lighter than most people think.
My A/C equipped '71 smallblock was 3,260 lbs.!! With 440/727 it was 3,440. NO lightening had been done and it had full interior/accessories and 1/4 tank of gas.
I'm guessing the GTX is 3,800 lbs. +
So I'm going to say there is AT LEAST a 3-400 lbs. difference which equates to 4/10 in the quarter or half a second.