I am currently working on a 71 satellite and would like advice. It is a 318 with 4bbl, edelbrock performer intake, mild purple shaft cam, and headers. I am looking to put a performance muffler on it. With these mods what would sound/perform the best. I am looking at flowmaster super 44's, hush thrush super turbo muffler, and glasspacks. Let me know what you think thanks.

update:50 series, 40 series, and 40 delta.
I think I'm counting out glasspacks.

 

flowmaster super 44s are loud, inside and out. I like how the 50 series sounds on a DD.

If you want performance take a look here:

http://www.broaderperformance.com/mu...flow_tests.htm

 

so how will the 50 series compare to my stock exhaust?