Bigger is definately better when talking about "seat-of-the-pants" torque and HP increase. The faster you can get fuel and air in, burned, and out the back, the faster, you'll go. It's physics. If you want an deep, thunderous exhaust note, go big.
When I installed my motor, it had true duals, no "x-pipe"(they will quiet your exhaust)2.25" mandrel bent exhaust pipes straight out the back. It sounded nice at idle and barked at throttle. I was seeking the "Big-block" rumble at idle and car alarm wailing at open throttle. I achieved this level by simply adding 14" long x 6" diameter tail pipe extensions. This gave it the deep rumble at idle and true straight thru Inline roar at throttle. I also am utilizing 18"x3" chambered mufflers from the 60's vintage Corvette side pipes. One hell of a sound!
RapRap
1940 Chevy Coupe
[This message has been edited by raprap (edited 06-04-2003).]
