604 , 12 nights since freshened by Hendren, new valve springs, ndra seals. $2800 as comes from GM or $4200 with p/s pump, MSD dist., water pump, pulleys, Holley 750 Gas carb., 1" spacer under carb, fuel pump, fuel rail, ready to drop in . Mobil 1 synthetic , changed every 3 nights.
