It is a mint condition, just out of the box, used only one week, carburetor. It is rebuilt by SMI (sean murphy industries). I purchased it out of the OPG catalog for 360 dollars. I will let it go for 200 dollars. It will work on any small block chevy engine, I belive with a spread bore setup. Its about 600 cfm, electronic choke, vac secondary, plenty of vacuum provisions etc. Email SLPFirebirdLT1@sbcglobal.net if you want pictures or have any questions or would like to make an offer.