We want to convert my friend Piyu's 2bbl 305 inch engine on his 77 Type LT to 4 bbl and we found this carb for cheap, but we are unable to decode it. On the carburator it reads 7027156, the 1 is quite strange since it indicates 2 bbl but the carburator is 4bbl (we have no ocular trouble both). Is this carburator worth anything ?

We also found a 4 bbl intake manifold that we should not decode either. Ont he manifold it reads 6283751 and J28 71. Did we misread the casting number ?