Guys the formula has'nt changed from the 70s. There were slant 6s and 318s along with the 340s,440s,383s and 426s. the 6s of today put out more hp than those of yesteryear. So a Challenger with a 250 hp six is more powerful than a 1972 Challenger with a 318. My 70 Challenger started life as a lowly 318. So muscle cars need reletives so they can exist. Without the 6s they cannot have the Hemis. So show some love for the base Challengers and Chargers without them we don't exist. We as in HEMI powered Muscle cars. And don't think that the 3.5s won't have some go fast goodies such as turbos and superchargers. Bolt-ons as in headers and intake, carbs and chips