Me too.. I chassis dynoed the previous engine and it made 491hp/497 ftlbs. It should make in the +or- 550 rwhp/rwtq range if the tune is dead nuts. That is my primary reason for wanting to chassis dyno.
When I drove the car with the vacuum gauge, I found out that I had 2-2.5 inches of vacuum at wot. I almost pulled the trigger on a Pro Systems HP 1000 due to all the positive feedback. At the end of the day, I decided not to chance starting over from scratch on a tune. Since then I found that my throttle cable had stretched and I was getting 15/16th throttle. I'd love to go injected but that ain't happening.
