Sorry about the confussion regarding the '64 truck, I am actually asking the info for my husband who is currently in CA, USA working on the vehicle. He went with the A15 engine so he could get more horspower out of the vehicle, but he is trying to keep the looks of the vehicle as original as possible. Again, any insight, info, advive is much appreciated!!

I am restoring a 1964 Datsun truck and running into some road blocks. I have an A15 engine and want to know if there is an after-market intake manifold and headers. If so, where can I purchase them? Also, the truck gages are all positive ground and I want (need) to convert them to negative ground. What do I need to do to make this happen. Any help would be much appreciated!!