MSD wire harness?
 

My buddy has an MSD (red) box i can have. My question is can I buy the harness and will it plug right in? I was told the harness will only plug right in on the (BLUE) box's?

true or false?

Yes, and no...

The standard "Red" boxes have standard wiring, while the ends on the "Blue" marine boxes have weather pak ends on them. I'm pretty sure you'll have to make up the adapters you'll need.

The weather packs are sold at NAPA and MSD these are neat connectors and easy to use but you can just install it with regular connectors ,MSD has a tech book that shows clearly how to hook it up to anything ,,or call them they will fax you the proper sheet or PM me I'll gladly help you and Fax you what you need :D