74 duster 360 production #s

I have one of those!
Mine is the muted, pastel yellow color. I'm repainting it a modern color called.."Detonator Yellow". THAT color has some pop to it.
The 3.55 was the highest numerically ratio that was offered. The 360 in stock form wasn't as free at higher rpms as a 68-71 340. SG was also offered as an option. Ma Mopar never had a 4.11 ratio in any A body though. I don't think the 4.10 ratio was even available in an 8 3/4, only in the Dana 60. I WISH mine were a factory bucket seat car, but instead it has the bench with the armrest. Its not a bad idea though, since it IS comfy. Mine is a column auto, 3.21 gear 8 1/4/ Disc brakes, sway bar, A/C. I hope to get paint on it by July.
Good luck with yours.