I just ran 12.9's in the quarter with my 360. 3.23 open rear end, stock 904 and factory stock converter, .427 lift/204 duration on intake, 750 DP on 730 dollar speedmaster heads, headers. Cruises down the road at 60 mph relaxed, idles like a stock 318 2bbl.
It ran 13.9's with 2.45 gear, stock 360 heads and stock exhaust manifolds. All else the same.
