Carter BBD 8146S 2bbl. bought it from someone (maybe on here/dont remember) & finally got it soaked & just about ready to go together & noticed a hole in each throttle plate, [ Moparts Family Site - Keep it Friendly ] I thought that was a wild cam mod & only valid in some cases. they are .106" and appear to be drilled in the same exact spot in each plate (OE as opposed to hand drilled??) Your thoughts please. this is going on a DD /6 & if I need to solder em up now is the time. thank you for your time.