The local Import Tuner shop that did my Subaru WRX "makeover" last year has a chassis dyno. That got me wondering about whether it would be a benefit to strap The MoPig (once running, obviously) down on it to see how it performs, maybe get some baseline air-fuel curve #s, etc.

Their shop foreman runs an Outlaw 10.5" Chebby, so it's not like they don't know what a carbureted American V8 is. Also, they seemed pretty interested in having my car on their chassis dyno after showing me videos of a 700+ RWHP modified supercharged Shelby 'stang on it.

So, who here has used a chassis dyno and did it really help w/ getting your tune dialed in? Or should I save the $$$ for test & tune entry fees at the track and dial it in the old fashioned way?