Dyno'd my Duster 340 how did I do?

I've never seena dyno trace like that that wasnt dismissed as "something's messed up with the dyno..." It should be a smooth trace, not a hueg sweap back and forth. Converting from wheel to crank is still an approximate. But the ratio is roughly 1 to 1.2 for autos, 1 to 1.15 for sticks. Or, 264hp, 278tq. I think that's low. that package should be closer to 325hp 380tq if what you say is in there and in right. I would try tuning it a bit. I cant see the number well enough to say what direction to try. Just that you should try something. That reading is low. Even if the dyno was stingy, that's low.