I recently put my engine back in and got the engine running. Here is a poor quality video of the sound. Please note that the engine is not yet tuned properly and is very dirty.
Setup-
2256
dual weber 44 idf
Triad West headers and muffler
https://www.youtube.com/watch?v=Ro7RmLcl1xQ
http://www.youtube.com/watch?v=Ro7RmLcl1xQ
the non-idle sound starts at about 1 minute