It's a 74 stamping, 75 model year block, early stamping so it has the thicker cylinder walls, YH code out of a Bonneville/automatic. As far as I know it's stock and not overbored and has never been apart. 5C heads (98cc). Ran less than a year ago before being pulled, didn't smoke at all and ran real strong. Has 2 barrel manifold and carb, HEI distributor, water pump, starter, etc. I'd call it an even trade for the hood if you would. You could just mill the heads and change cams and bolt in... or rebuild and do it up silly fast!
I have added a couple more Firebird guys to the local list and have 6 other guys not counting you or me or any of the guys you know. Email me or PM me and I'll share my list with you.
I still hope to have mine done this year but I kind of doubt it due to money. I'll give you a holler on the phone sometime in the next week or so.