This is a new Berry Grant mighty demon carb, it has dyno time only! It's a 750 that flows 930 CFM. It has a billet idle-eze base plate, 4 corner idle,-6 An fittings, all the good stuff. These are blower carbs but can be used on std. Manifolds. Part# 5402010BC , and costed $ 800 each so get them at this killer deal fast!There are 2 available. Shipping is each. Email any questions you have.