Weber 46 setup for a 3.6 / help
 

Working on a little project with a 3.6 and Weber’s. Ida 46s

Looking to see if there’s anyone out there with similar setup that can help with jet sizes and such

46 on a 3.6
 

If you have original Webers I can help you.Do to your port size you should use the original jetting with one change.Change the main jets to 180 with the 42mm venturis.They are just a little smaller than the 3.6 ports.MAIN jet is always 4 times the size of the venture plus 5% for a larger motor.I have a few sets of 42mm if you need them.I have a nice set of custom step stainless headers and muffler if you need another 25-30 HP.Ciao Fred

Webers
 

Also the tall diffusers were a size of 4.5mm but when I raced in IMSA we used a 5.0mm for better midrange from 4-7500 rpm.I have some of them as well.Ciao