Ok I just wanted to make sure. On the tire, I didn't see that you posted the 10.5. There is no limit on dia just wanted to run the stiff side wall in the 28's to keep from tubing the car. The heads up class I ran in before was stock suspension with a 9" tire & only allowed mini tubs & moving the springs in for tire clearance. Hope that this comes back some day would just have to take off the ladder bars and go back to the 9" tire.
Are you thinking the 5.57 is to much for 28" tire 1/8th mile?
Last year I ran a 5.13 with a 29.5x9 stick tire on super stock springs in a 3360lb dart. Was 7800 in 3rd gear or 5400 in fourth it ran the same et and was within 3-4 tenths in mph. It was clear out of wind in 3rd I was running ported j heads. Going to use the same motor with ported w2's this year.
Would I be better off using the 5.13 and the 29" tire in the lighter car?
I really appreciate the suspension tips thanks so much!