small block heads, 4027596 casting # any good??

ya i guess i havn't mentioned much about that yet, my intended purpose is mostly street but i hope to get it out to the track every once in a while. I'd like it to perform well you know, it may be a street car but i'll need to back up what i say right lol. I'd love to see it get to 12 seconds in the 1/4. So far my combo hasn't been decided on yet. I guess i'll be doing things to it as the funds come along. for the short term i just want to get the 360 (bone stock) in for the spring and get it running again. Any other suggestions on combos are open for debate as well. For now the rotating assembly will stay stock and it won't be bored out, i'll say that now. It will be a 904 or 727, i have both so whichever will be an easier rebuilt, and an 8 3/4, not sure of a gear set yet, i don't want any higher then 3.91 cause it needs to be street friendly. Other then that everyone is entitled to their opinions, i'm taking everyones opinions into factor, but please don't kill each other. thanks again guys