I have a holley 600 vac sec i don't need. It needs a rebuild. I also have a 750 vac that was a doner carb and is good for parts. I also have a box full of metering blocks, accelorater cams, jets, powervalves and other parts. 20 for the 600, 20 for the rest of parts, or 30.00 for all. Plus shipping! I don't have anything that runs carbs anymore and don't need this stuff anymore.