Air horns???
Also which is the best header set-up... I have a friend that runs a business that does coatings of all type and he will do the ceramic coating so I just want good headers that I will have coated.
Thanx fellas
should have specified. I wanted to mention the "air horn" removal, I think the throttle body is a good idea but will yield the best results after the other intake & exhaust restrictions are taken care of.
FOUR WHEELER Magazine's Project M.P.G.
Quoted from article
" Here is where the factory intake noise silencer is located on our Ford, which theoretically restricts the intake air from the air cleaner as well. In order to improve performance along with comparing filters, it was originally thought that this restriction was needed to be eliminated."
" On our Ford we needed to simply cut off the reducer cones designed to eliminate intake noise during acceleration. After cutting the plastic restrictors off with a hand saw, the edges were filed smooth and reinstalled into the factory location. Noise was slightly increased under half throttle, but it was a 'racy' sound to be appreciated. However, after the first few runs back when we were just beginning Project M-P-G, it was apparent that the performance actually dropped, therefore we reinstalled the cutoff pieces and instantly seen the return of a notable increase in bottom end torque and midrange performance. I guess Ford did have a better idea here. We tried again later to see if removing the silencers would help when other performance products were added. Only until the exhaust modifications were installed did the removal of these silencers pay off. However, ours were very smooth flowing and the removal of other more restrictive designs may prove beneficial if removed sooner."
" Now that we eliminated the factory air tube silencers (above), a notable decrease in the intake restriction was realized. Many fuel-injected vehicles have these noise baffles located in various places and significant performance and economy gains are claimed to be had by increasing the air flow here. We found our engine to be running slightly lean across the entire fuel curve due to the increased airflow. By simply turning up our adjustable fuel regulator 2 psi we were able to compensate and further increase power and economy while reducing pinging and the need for higher-octane fuel."


