dumb question on egine mounts

[josht]

I have a 68 GTO with Chevelle big block frame mounts, Edelbrock plates and mounts.

The frame mounts have four and five bolt holes.
Do I use two bolts for each frame mount or use four bolts?

Is using ARP bolts worth it?
I would have to buy 4 sets for eight bolts?

where can I get a set of regular bolts?

thanks

[cheapthrillz]

I'm pretty sure it's a 5/16 hole in the frame and mounts, and I think that Grade 5 zinc plated would be plenty strong enough since there are 4 bolts in each mount. You could use stainless hardware also.... I don't think ARP is a necessity, but I may be wrong....