1970 Plymouth Duster 5.7 Hemi/T56

B_Chandler said

I did alot of the same homework. The math worked out so that with a 28" tall tire, the T56, and 4.10 gears, it would hae all the fun of an A833 and 4.10s around town and have great highway manners. I cannot wait to drive this car! I got sidetracked lately with my truck, but now I've got my Duster focus back.

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Yep all the great gearing for hot rodding around and two over drives so no compromises anywhere.

I had 3.91s initially and with a 4 inch stroke small block it was a handful so switch to 3.73s when I swapped the Dana in. But I think 410s for your combo will work really well as long as you have enough tire on the rear.