I say go for it, and have fun while you're at it. After all, that's what it's all about. I had 2 IDI's, an 85 6.9 and 90 7.3, both reg cab 4x4's. I wanted to pull both of them, but never had the guts to and always listened to the naysayers ragging on em. After hooking my 01 Ram GASSER, I immediately wished I would have pulled them. I didn't win with the gas job, and was still thrilled.
As far as the TTB goes, for a great while around these parts, there was a 460 powered F250 that was always taking top honors. It was by no means stock motor wise, but looked relatively stock suspension/drivetrain wise. The truck was very smooth, never hopped, and flew down the track with the sled in tow. Take it for what it is worth.
I love my CTD's, but have a soft spot for the ole IDI. Get some vids and pics when you do hook it.
