No they will not fit. I have this exact wheel for my car with 28x12.5 ET's. To be used for a frame notch. I have decided to go back to some Convos. That size really fits the F-bodies and the Cobras too I am told.
These are for sale by the way if someone is going to notch their frame. They are Weld Superlites. Ad on turbobuicks.com.