I have a very nice set of big tube lightning water jacketed all polished stainless exhausts for bbc with 5 inch exhaust outlet and o2 sensor bungs. They were built for blower motor but were never run with blower and have very little run time on them and are like brand new. They also have a slight kickout at the valve cover to clear most all valve covers. Going to try turbos. I paid $4200 for them and will take $3500 obo. Can send you pics if needed and call 318-687-9088 days. Im in shreveport, louisiana.