They cant be the CORRECT numbers because they do not have the holes in them for the smog setup. All 4 speed cars in 69 and all solid lifter cars had smog! Wrong air cleaner also. It looks like a nice car you have but with no paperwork or original engine its really hard to be sure its a 425 hp car. At 52k I would think you would need something. 69's are hard cars to get the money out of. There is a true 42k mile 425 car around here with paperwork thet was just sold for 25k.