Stock front end is fine, there are 8 sec 1/4 mile cars that still have torsion bar suspension.. super stock hemi cars come to mind.... All the talk about aftermarket front ends, is to say "look what I bought" and for header clearance. They offer NO OTHER benifit other than that.... and putting ALL your suspension loads, as well as the engine weight, right in the middle of the front frame rails, is a bad idea, long term wise...Mopar knew what they were doing when they designed there suspension system....
I'm pretty sure Bobby Isaac set the closed course record at Talladega with tbars. 212mph average or somthing like that can't remember. But that was in 1969 so it doesn't count anymore I guess.
135+ down sunrise highway 67 cuda notch. 360ci xheads. stock front susp wit 90/10s. was a few years ago as these days i rarley go faster than 100mph anywhere on te street. 135 in a stock suspension street car wit lap belts no cage and the engine screaming at 7k is down righ scary man!!
Honestly my speedometer hasn't worked the whole time I've had mine. All I know for sure is its ran 112 in 1/4. That's all gonna change though since I bought a t56 the other day.
Back when I was at Miramar, I discovered I-5 was uh, "under used" at 0600 on Sunday mornings. I used to get up early, and crank that thing up Northbound, up to Del Mar and back.
My first was the 69 RR, 383 4 speed, 3.23s, headers, Edelbrock, Holley. 130 or better
After I bought the 70 RR, 440 sixpack, 4 speed, 3.54. 145+ many times
64 Dodge "440" body, 426. Easy 125. Not quite as stable as the 70