Post your 12 second small block combos
0.30 over 340 block, stock rods and crank. Stock unported J heads with stock 2.02 valves. Crane HMV 278 cam. Stock intale, 750 Thermoquad, Mopar electronic ign., TTI headers with 2.5 exhaust with stock tips. Cheap 10 inch 3000 stall converter, 4.10 posi, L60 15 tires. The valve springs were worn out, so could'nt rev past 5000. Ran 12.99@ 99 mph! I used to bracket race the hell out of it with a 12 inch converter and 3.23 gears. With 235/60r14's on stock ralley wheels, it would run 13.70's at Gainesville all night long. Won lot's of trophies with it back in the 80's and 90's. This is in a stock 71 340 Demon. Needs freshening and paint now. I've seen Racerbob's Duster run, very nice. Cars seem to run quicker at MIR than Gainsville. Must be the air or something.