I'm still debating the 4.125 vs 4.25 stroke for my next motor.

I have a 4.04" by 4.17" stroker SB Windsor Ford in my Cobra replica, it's got some well ported Trick flow heads and driving it it feels Exactly like a 427 FE big block without all the extra weight, this motor redlines at 6200 which is plenty for a 2450 pound Toy. Good heads with strong mid lift flows are really the key to get the broad torque, too big of a head ( high lift flows) are IMO Not the way you want to go, some of the more race oriented heads don't really flow much if any better than smaller ( less expensive) heads below around .450-.500 lift....so just keep it in mind that big heads really need bigger (less streetable) cams to work the ports....and with a relatively mild cr you may spend much more on the top end of the motor than you need to vs a more thought out solid street combo.

Take a look at Bryce's airwolf torque curve on that 408 with a mild street roller, you could run 3.91 gears at 4000 pounds and still have more wall to wall torque than most street cars can possibly hook, broad torque like that is indicative of awesome part-throttle and roll-on power, that's what makes stroker small block motors feel like big blocks on the street, and what makes the right combo so much fun the drive.