Uh, I'm in California too, so, sorry about that. Someone made some money off you. :banghead:
Yes, you'll need longer bolts as the FMJ ones won't be long enough. Someone solved this issue already on here, I'll try and find the thread.
**EDIT**
Ok, so I found one thread where a member stated they just used grade 8 bolts and nuts. No mention of any grinding.
I would just buy a set of grade 8's and mount them up. Check the clearance between the head of the bolt and the rotor. Doesn't have to be much, just enough to allow for a little play in the wheel bearings or a little rotor warping down the road. I'd want a little extra just so if the wheel bearings wore out there wouldn't be any chance of the bolts hitting the rotors. But you're still not talking about a ton of space, a 1/16" would be plenty. Anyway, if there isn't a ton of clearance, I'd just grind the heads of the bolts to fit. As long as you don't get the bolt red hot, it won't effect the strength of the bolt. And I don't think you'll need to make them as thin as the originals either, so it shouldn't be a huge issue.
You can also use the stock bolts from a '73-'76 A body spindle, they're long enough and work fine, if you can find a set.
