Max size cooking in BuildOS

Hi everyone, it´s my first post.

Im cooking my own ROM using the BuildOS (THANKS A LOT FOR THIS TOOL ) is fantastic and work fine.

But when I select all the options that I want in my cell, the building log this:

Compiled Size (0x40e0000) greater than Max Rom Size (0x38e5800).
Remove 0x7fa800 bytes (8366080 bytes).

I think that 38e5800 is like 58,2 Mbytes (I guess), but im not sure.

My cell is Apache 6700, and have 2G in SD.

* So what is the max size that i can use creating my own ROM?
* Is possible extend more size in that ROM?

Thanks.