I'm replacing my carburetor. All the remanufactured ones have been junk. At Summit Racing.com they have one that says " Chevrolet/GMC: 1974-78 350-454 trucks and cars with a divorced style choke, 750 cfm Performer Q-jet carb This brand new carb is 50 state legal for 1974-78 350-454 Chevy/GMC trucks and cars originally equipped with Quadrajet carburetors. It's engineered and calibrated to stock specs and has all required vacuum ports. The triple booster primary venturii design makes for great drivability and optimum fuel economy." Is that the factory or original amount of cfms for my truck? My engine is stock and I don't know how many cfms I'm supposed to be running without flooding out my engine. It's just a regular 350. The picture they had looks exactly like the one I just took off(minus the edelbrock name). If it isn't the right one can someone give me the part number or the type that should go on my truck?