[grandville455]

Originally Posted by shaker455

You can read earlier post for your questions:
Post #1 outlines parts used
Post #35 milling machine
Post #76 base plate throttle bore resizing, milling machine
No mods to venturi shape
When outer ring is removed drastic signal loss
Area was much larger than a 455HO casting so signal loss maybe greater
Definite increase in area WOT, others who have done this mod street & strip can confirm
Goal was to regain some signal strength to match the 455HO while gain primary airflow and low speed drivability
This lead to three other approaches that I started to experiment.
If you take a try post up your results
Thanks

Thanks! So looking at this pic, did u remove this ring also? It kind looks like it in the pic?