Dissapointing Results - Have I Missed Something?

I just got a call from Dyno-shop. The car has now 285 HP.

After the intitial Dyno-test (cf 1. post), we installed the following:

1. Scott Drake Tri-Y headers
2. Edelbrock Performer Air gap intake
3. Underdrive pulley
4. Went from 500 cfm to 600 cfm carburator
5. Replaced fuel filter

(Please read 1. post in this thread before you reply)
 
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i am betting that most of the change came from the extra 100cfm carb. and i am also betting that with a little tuning that motor will be over 300hp.

I will post the report when I get it. Their printer was out of ink. The report showed 3 curves, the initial test (attached to 1.post), then a run with the new headers, intake and underdrive pulley, and a third curve with the new carb. This was from tuning, so I don't think one could tune more. I will upload the results as soon as I get the report.
 
Here is the report.
Grey curve= as it was (Hipo manifolds, 500cfm carb, performer intake)
Middle red = Underdrive pulley, RPM Airgam intake, Scott Drake Tri-Y headers added
Top red = 600 cfm carb
 

Attachments

  • mustang-tune-2015.pdf
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