Why Carb and non OD a Gen 3?

MopaR&D said
My cousin was visiting the area from overseas last week and was staying in Charlotte. He wanted to try some Southern BBQ so we met about halfway in Columbia, SC. I decided to drive my Duster to give him a ride in it and show how much it had progressed over the last 8 years or so since I had last seen him. Well it was about 100 miles on the freeway and the first time making a trip like that since I swapped to 3.55:1 gears, car has a 904 with a 2800-RPM stall converter. It SUCKED. ~3500 RPM the whole way at 70-80 mph, used about 2/3 tank of gas (calculated around 12 MPG) and a pint of oil in that trip alone. In contrast when I used to cruise at similar speeds in CO with the 2.94 gears it was closer to 2700 RPM and much more comfortable and got closer to 16-18 MPG. I really don't want to drive this car on a longer freeway trip again until I get the 2.94 gearset back into my other 3rd member. And of course now I want overdrive more than ever. I bet cruising at 2000 RPM or less it would break 20 MPG.

Ouch.

For what it's worth, with the double OD wide ratio T56 Magnum, 3.73 gears and 26.7" diameter tires, I calculate 1528@65 mph. If I end up running a square 275/35R18 setup instead, I will probably drop down to 3.55 gears which works out to 1516@65. Both are around 1750@75.

I would worry that this will lug the motor, but my 2015 R/T cruised at 1485@65, so not worried at all.

MopaR&D said
IMO the most aerodynamic classic Mopar (after the Superbird/Daytona of course) is the 71-72 (and to a slightly lesser extent, 73-74) B-body Plymouth. I really want a 71-72 Satellite for that reason, I also like how they look.

I was daydreaming about one of those just today. It would be a tough call for me to have to pick between most any E-Body and a 71-72 B-Body.

MopaR&D said
I decided for swapping my 5.7 into an A-body (not sure if it'll be my Duster or something else) I'm going to put in a "Stage 3" Texas Speed cam and lock out the VVT. I watched a Dead Dodge Garage video of him test driving a 6.4-swapped '71 Challenger and he couldn't give it more than about 1/4 throttle without breaking the tires loose. I don't want that much torque and I want my Hemi to run like a Gen2 Hemi with roaring endless top end and 7000+ RPM redline. That cam also seems to retain decent enough low-end torque for use in modern Challengers and trucks without wrecking gas mileage and needing too many supporting mods so the street manners in a 3400-lb A-body should be nice.

I'd have to go back and watch it again, but I think the Reignited guy put the same cam in his 6.4 swapped C10.

I know I am limiting myself, but really want to keep the VVT and the 6.4 cam in a 5.7 is supposed to be a really nice combo. And seeing my cruise RPM's, just seems like the best bet to keep it. I understand though and really expect that once I have the car driving for awhile I will want more. But at that point I can either swap in a 6.4, or bolt on an HC blower.