Cam help
In a lo-compression model; 318-Whiplash, or small ThumpR.
Yeah, I know it's a 69 car. but does anybody actually think that after 55 years the guts are still stock. Com'on most of these were blown up within the warranty period already.
But be advised that as soon as you get the revs off idle, they smooth right out, and then the jig is up.
Like JYHero said, just idle the stocker down, retard the timing a lil, richen it up, and chug-a-lug on down thru the DQ drivethru.