built by builds racing in norman okla, bowtie blocks, 4.25cranks,hbeam rods, big brodix alum heads, full hyd roller cams new, new intakes,carbs just bebuilt, these are new dyno time only, complete with pumps, crossovers,imco exhaust etc, 25000.00 call 405-640-1491 going back to blowers made 620plus hp 650plus torq, these are complete and built by one of the leaders in offshore racing.