Post your 12 second small block combos
My 1975 Duster - best time 12.35 @ 111.85 at Firebird near Boise, ID (2700 foot elevation, about 95 degrees that day)
Gutted but still all steel. Home fabricated angle iron bumper brackets with only outer skins
10 point mild steel cage and subframe connectors. One racing seat only
0.030 over 360
KB 107 flat tops - approx 10.25:1 compression
Stock crankshaft and rods (ARP bolts) - balanced (external)
Comp XE282 solid cam. Hughes 1.6 rockers. Smith brothers custom pushrods.
Stock oiling system
IMM Indy LAX heads with usual setup
Edelbrock air gap
Summit 750 mechanical secondary carb
Cheapo no name 1 5/8 headers with 3 inch duals and glasspacks dumped before the rear axle
Full manual 727 with custom converter (approx 3500 stall). Footbrake
8 3/4 B body rear with spool and 4.56 gears.
Hoosier 275/60/15 drag radials
Pulls hard to 6500 RPM