Long ago I had a 68 Charger. Light metallic green with a dark green vinyl top. 318 with a 904 trans. While in the army in Fort Sill put a 340 cam in it Edelbrock LD4B manifold, Used a Holley 650 4 barrel, Moroso valley cover, Chrysler electronic igntion conversion, Had dual exhaust installed with thrush 5163A oval mufflers. Got SS reversed Cragars with F70 front and G60 in the rear they filled the wheel wheels just right. Didn't need them but put on a set of Lakewood traction bars just for looks. With the 340 cam the ole 904 didn't take it long so put a 727 in from a 340 Dart, with a Winters shift kit. Drive normal Ok, Drive hard every shift was a BANG. The only thing I never got changed was the 2.76 rear gears. That was OK because I out ran a Duster 340, he just couldn't keep up-- he was floating the valves. Had a cop stop me once and he just kept looking under the car, He said it sound like I was speeding? I think he thought I had glass packs on, Those thrush ovals looked like stock mufflers if the chicken was turned up.. Got back home and a year or two later found a local dealer had a 70 Challenger R/T 383 auto --- Yep dummy traded. A while after that was doing service work and waiting at a light making a left I heard this car pull up to my right rear corner-- Ba-lup, Ba-lup, Ba-lup Just had to see what it was-- yep you guessed it was the ole charger and boy was i beating myself up!!!