I have read the articles on ported vacuum for two barrel carbs, and think that I understand? My problem is that I have three 2110's with 1 5/32 venturis and no economizer valve provision, hence no place to drill as per the instructions. My question is, can I drill into the throttle body just above the throttle blades and get the proper vacuum signal for the distributor?

Jan  Urbanczyk  Major USMC Ret.

                                                                 Bowie Maryland