Hi and welcome to mightyram. Well, if you want to know something, you're in the right place. Google anything D-50, Ram and Power Ram 50 and Mighty Max, you'll pretty much end up here (there's also Plymouth Arrow in the mix as well). Noticed you are searching for the vac line layout for the Mikuni. If you're not a slave to the emissions testing regime, the get out of jail ticket is swapping the stock carb for a Weber 32/36 or the newer 38 DGES. I helped a member from Tx with correct jetting their Weber install and it really got his G63B breathing. We're not totally biased either - there's a section for members who do actually have other rides in their garage. As with all noob members - ask questions, post up pics and get a thread going