Cherry Bombs. Mine are 25 yrs. old on my Y Block, still sound great! As always JMO, which is what you asked.
i love my cherry bombs on my olds, not too harsh like you guys are saying because i went 30" on them. then again, that's with the low compression small block...this 10.7:1 455 i'm putting in next week might be another story
I dont want to hijack the thread, but check out a simular poll I did a while back. Interesting results! http://www.jalopyjournal.com/forum/showthread.php?t=102243 .