Here are the results from the slant six on the Mustang Chassis Dyno.

These results are with a 2-bbl (Carter BBD)
factory air filter and Super-Six air cleaner housing
Max Torque : 140.414lb-ft
Max Horsepower: 93.337hp
Avg Torque : 131.983lb-ft
Avg Horsepower: 88.101hp


K&N air filter and Super-Six air cleaner housing
Max Torque : 142.708lb-ft
Max Horsepower: 95.763hp
Avg Torque : 135.147lb-ft
Avg Horsepower: 90.406hp


Baseplate only
Max Torque : 150.937lb-ft
Max Horsepower: 103.493hp
Avg Torque : 143.384lb-ft
Avg Horsepower: 96.418hp


Let me find the 4bbl data on the same slant.

Chris