So I'm looking at purchasing a van to convert into a home base for an extended road trip to different backpacking destinations, so I'll be doing a significant amount of driving through the mountains. I've come across a 1986 G20 van with the 6.2L for a pretty reasonable price($3,500.00 for anyone curious.) The 6.2L seems like an attractive option due to it's fuel economy, but it seems the main complaint is how gutless the engine is. My budget for a van is around 5-6k, so the only comparative vehicles i'm finding from a price standpoint are 1990 gas conversion vans, or early 2000 cargo vans with 200k+ miles. My question is, how will this engine handle the mountains compared to the gas engines in 1990s vans? Also...I don't have any experience working on cars, but would like to learn, would this be a good engine to learn on?