Does anyone know what the flow rating on a Holley-Webber 5220 is and how it compares to the factory Holley 1920 installed on a 1963 170 slant?
I have been thinking about installing one of these carbs on my wifes 63 Dart 170 with 3 spd column shift trans.I have already increased the exaust to a mandrel bent 2 inch system and recurved an electronic dist. per Doug Dutras recommendations.
The car runs well with the 3.23 rear but lacks a little on the top end and was thinking a staged two barrel like the 5220 would be good at both mileage and power plus I already have one in my possesion. I would use an aluminum super six intake with an adapter for a Jeep.
Would a Carter bbd be better than the 5220 or does anyone have any suggestions other than this?
As always ,thanks for any help.
HyperValiant

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1960 Hyper-Pac Valiant(rolling test-bed)
1963 Valiant V2OO(Son's summer project,- he just turned 15 )
1972 Valiant 4dr(Daughter Kelly's repair in progress)
1974 Valiant (v8) daughter Kelly's work in progress

Most Holley 5220s are rated at 280 CFM- the same as the BBD.