The Charger's got an old school 440 ,had MP .590 cam had with ported and milled 915 castings best time was 12.5@110 with a 1.65 60 footer too much cam for the rest of the combo ,have since down sized to a MP .528 solid wayyy more bottom end performance won't know till I gitr to the track.Drove around for year with open headers,slicks,and a 4.88 dana lots a fun.(til the cops started goin to my house and waitin fer me to get home.)(I'd tell em' it just ain't the same with mufflers but they weren't buyin it!)So then I made a set of exhaust pipes in the union welding class(shown in pictures)with them flapper caps you see on semi exhaust stacks connected with a medium tension spring so when you were cruising it was nice and quiet butttt when you drop the hammer HOLY SH!!!!!!!t sounded like a of T-Rex mauling a Brontosaurus.The caps ended up too low to the ground and kept getting bent up on stuff so I ended up taking them off, but they were cooool while they lasted.The rear end is all old school hill billy engineered and consists of an added leaf per side clamped in the front no clamps behind the axle,traction bars with Cordoba gas charged shocks mouted to the front of the bars to dampen any wheel- hop,a panhard bar from a 67' Imperial to stabilize the rear from left to right when yer bangin gears is attached with an inverted ramcharger shock /U bolt bracket.On top of the pinion I have an adjustable snubber (with a rear driveshaft loop)made from a $10.00 jack stand from ALDI .Actual snubber is from an Imperial chassis.This thing is VIOLENT off the line and hooooks UP!!!! Hopefully in the 11's next time at the track.