i posted already but didnt get any replies.
what would be the best bore for my 5.0?
its a 85 engine carbed edelbrock carb and intake and its got 83,000 miles on it?
i need to know what to tell the guy tommarow. please anything helps!

 

Why bore it if you don't need too? Unless you want to build a bigger bore or stroker, if that is the case you should decide on what size stroker you want to build that would answer your own question. If it is a matter of having to bore it due to wear no real need to go more than .030 over IMO.

 

most don't go more than .30 to a 306

 

the machine shop will tell you what it'll clean up at...most likely .030 is standard