IMO
Since 1970, I've had four 340 cars, all 4speed/3.55, all with that stinking cam in them. All of them laid down at about 85 mph. which is 5500rpm in Third gear. I had guys in 440 New Yorker family boats, and such, that I annihilated off the line, that by 75 were getting bigger in my mirror, and pulling on my bumper by 80, and had I not specified
"I only race to 85", they wouldda had me in the quarter, which none of my stockers could break 100mph; not even the nearly brand new one that I bought in fall of 1970.