i ran a 400 230 block filled with B1 original heads the cylinder wall got out of round the car slowed .500 i have a 588 B1 pso motor for sale with a koleno block,Bryant crank 55 mm roller cam 945 lift .Cp pistons all the best Parts Built by Best Machine.peterson dry sump Marcella sheet metal sv1 carbs.too much to list. its on Racing junk . i just bought PeteCostas Hemi Pro Stock Motor im looking to sell it .it made 1215 hp it went 7.43 at 2600 lbs thanks John