Well guys we got it tuned and it survived the dyno. Picked up only 100hp and 15psi. Wished for a little more power but we’re glad it survived the dyno..it a 400,000 mile motor. Plan to take it to the track Saturday and see how it runs.
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i take it the 329 hp was on the same mustang dyno you made 238 hp NA? that 238 hp provided you with the best NA long block gen1 in the 1/4 mile! mustang dynos have a reputation for delivering more real world or conservative results compared to some other chassis dyno brands. i agree with slow94, the performance at the strip is all that matters. let's wait and see what happens at the track.