I have a holley 450 (part # R7454 and model # 4360) for sell, i bought it 2 yrs. ago and done nothing with it.
I have a holley 650 ( part # R 6528 and model # 4165) for sell that i bought on e-bay and was listed as a holley 850 double pumper. Well this is a spread-bore 650 and it is no good to me. Was listed as having a new kit put in it and since putting it in never ran.
I also have a Rochester quidra-jet 800 cfm carb that came off of a buick 455. Other than this I have no idea about this carb.
If intrested in any of these carbs or have any questions just let me know here or call my cell (417)766-0449. I would be willing to do some types of trading or sell all three as a package deal.