Bead blasting plugs, reset gap and reinstall, put thinner oil in Solex type carbs for quicker throttle response. Drilling centrifugal weights in distributor for quicker advance. Replacing "needles" in a Quadrajet carb. Paying 35 cents a gallon for gas in 1970. Thinking no street car will ever be as fast as a Shelby GT500KR. (our FiST's 0-60 time is very close). Watching street Hemi 'Cuda's shut down by 340 Dusters LOL. "Those were the days my friend, we thought they would never end."