In the song "It Dont Come Easy" by the Smitherines (google it, its an old song).

anyway in the song's intro, they use a chorus/flanger sounding thing. I cant decide if its an actual flanger, or just a chorus being pshed really hard. Could someone confirm for me please?

also, bands such as Boston, BTO (Bachman-Turner Overdrive), and Styx probably used Marshall amps right?

also which flanger would work best for the above listed bands? I was thinking maybe an EHX Electric Misstress.
Well, which amp did you end up getting?
Call me Wes.
Fender American Deluxe HSS Strat
Chicago Blues Box Roadhouse
Bad Cat Cougar 5
1957 Gibson GA-5
Ceriatone 18w TMB Combo
Hughes & Kettner Tube Factor
Various Ibanez TS9s
Weber MASS Attenuator