Duster suspension set up questions

IMO, for a street car you need a taller front tire. You are going to get a pretty good rake out of the 25/28 difference and trying to adjust the body height to cover the top of both tire is going to make the rake even greater.

I'd also say that if the majority of your time is spent on the street, then build the suspension to live well with good manners there. You won't be giving up much at the drag strip and since you are going to be bracket racing it, ultimate chassis efficiency isn't going to win races over being solidly consistent. Build a nice solid street suspension and live with its times at the strip.

Here is why I say that - I used the same powertrain in two totally different cars. One was a canyon carver built with high rate t-bars and leafs, sway bars on both end, high pressure gas shocks and tires a few sizes below factory Viper sizes. It drove straight as an arrow and cornered like it was on rails. The other car was a dedicated drag racer with a light and loose front end, 90/10 shocks, super stock rear with 50/50 shocks, no sway bars at all and the traditional big and little tire combo, it flew down the strip and cornered like a drunken sailer. I ran the same engine, trans and rear gear combo in each at different times. The handling car would turn 13.2 like it was punching a clock. The drag car would run 12.2 to 12.8 depending on track conditions, weather conditions, and suspension tuning. For as ill mannered as the drag car was doing anything but going straight under full throttle, it wasn't necessarily that much faster overall and it was much harder for me to go rounds in it as I am not a great weather tuner. I went more rounds and went deeper into eliminations with the street oriented car. FYI, but as always, your mileage may vary.