Here is something I found on Chevy Talk that I thought I would throw up on here.
http://www.alanhorvath.com/54chevy/doors_quiet.php
It is good for quieting your doors from slamming, putting on your fire wall and floors, etc. They have this stuff at Lowes and Home Depot and are in the roofing seciton most likely. There are all different name brands for it and all do the same job and is around 12-15 bucks depending on where you go and live and the brand.
I thought I would share this with you guy's for a tip on making your hot rod more quiet without having to spend a lot of money on all those pads, etc.
Sorry if I didn't spell quiet right either, I am having one of those days where I can barely even spell my name.

Shawn-