I have a new in the box Proform main body and a 650 Holley DP that I don't need. Carb was bought off of Ebay, so I don't know if it was running. As a matter of fact, the metering blocks are switched, the front on is on the back, etc. FYI a 650 holley has the same baseplate as a 700 or 750. Therefore this carb with the new main body will flow as much air as a 750 with the new main body. I want $200 plus shipping for both. The main body has all the gaskets, instructions, etc. After I bought this stuff, I ran across a 750 Holley with the main body already installed at a price I couldn't pass up. Who needs this? PM me.