Post your 13 sec combos
I would post the time slip from Fremont Drag Strip (in 1976, but the fire in Paradise Ca took it, along with all my pics and flash drives.
The first one: 1968 Dart GTS 340, Automatic (old school shift kit, stock converter)
Short block....Pure stock 1968 340 with 70k miles (not rebuilt)
Heads .......Pure stock 2.02s with a performance 3 angle valve job, milled .020.
Exhaust.....Pure stock cast iron manifolds, including mufflers and the under the bumper tips
Camshaft.....Pure stock, never out of the car
Carburetor....Carter AVS (from a 440, I cheated). Smaller metering rods, larger pump squirter. A few more mods (that was fun!)
Intake.....Stock 1968 cast iron
Distributor....Stock single point. Lighter springs, shorter advance
Rear.......3:91 Sure Grip
Tires ......G70-14 bias plies
13.75 @ 99.something (there was VHT on the starting line that night). 13.80s the rest of the time (no slicks, ever)
I sometimes used this GTS as a tow car for my '69 Swinger 340
Man, I just loved that cool, dense Bay Area air!