904 race build

70aarcuda said
engine size....weight of car?

i use 5 thin oem disc in the front ...along with the 25 spring kit in the front drum. Use Kevlar bands front and rear...except now I have some red line wider front bands from Tranzact that i am using.
Billet Rear Servo from MOPAR 904 500 42RH 42RE TRANSMISSION BILLET REAR SERVO KIT, DODGE, PLYMOUTH AMC | eBay
plus his band strut too.....

only problem i have had with 904s were my mistakes with the rear drum lip seal.....
cars are around 2900/3000 lbs plus or minus....they have run 6.40s in the 1/8 a few times in Vegas and always at sea level....
4 of the cars have Tranzact tranny brakes...and one has old Turbo Action Cheetah RMVB....
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It's a 416,12.9:1 with flat tops,molnar crank and rods,modern cnc promax heads,small bullet solid 571 lift 251@50 cam,sv intake,950 qf carb.Would love to try a bigger cam but I'm maxed out piston to valve clearance. Car weighs 2900 without me.
My local track is Mason dixon.Elevation is around 550 ft.Summer time corrected altitude can be 3500 and early spring or late fall can be minus numbers.I think when it ran those numbers it was around 1200 ft.