Low speed torque and driveability ?

I'd say it's a case of piss poor carb parts selection and tuning.
100% right
ive run all those cams including the 471 street hemi and the 484
the xe268 is stronger then the stock 340 cam across the board if the car is tuned right
having it in the 68 340 with nothing more then a stealth and a tuned 650 dp its nit even close
85k all stock 14.3 @97 mph
100k bottom end now new top end 268 same intake carb much much quicker and faster its not close
Tune the setup instead of blame the cam
that includes timming