I have a set of MM Z to Honda adapters I purchased months back. Well, I just got around to swapping the wheels off my 94 Honda Accord to my 71 Z. The problem is the bolt patterns are apparently the same. I was always under the impression that Honda wheels were 4x100. My Honda appears to be 4x114.3(?). Has anyone else run into this problem? I need a set of +40mm spacers but indentical wheel pattern as my Z. I've E-mailed Ross in hopes of some resolution but I fear I'm out that $200+ and will need to locate another set of spacers.

Looking at a site that sells wheels, it looks like Honda Accords came with 4x100 from '82 to '89 and 4x114.3 from '90 on. I don't know the accuracy of this but it matches what you're saying:

http://customwheelsmarket.com/vx877sil.html

The guy at Techno Toy Tuning makes wheel spacers to order, including adapters from 4 bolt to 5 bolt.

yep, the 90 on up accords and 92-96 preludes had 4x114.3 pattern