Basically you have to be within a inch of the sidewall height to not throw things off and not be too wide or narrow for the tires to fit the rims also.... the lower the number the wider the tire as in 50s narrower than 40s ..etc....
Me Myself I have on order some wheels for my going wider with the wheels being wider than stock as 9" fronts and 10.5 Rears compared to 8" fronts and 9" rears stock. Speedo settings are usually changed for different rear gears...… the tire aspect ratios unless you like driving with codes or changing out damn near everything as in stabilitrac wheel speed sensor stuff....needs to remain with in a inch...… That's what I think... And I am waiting production of these wheels
https://www.americanracing.com/produ...24-cross-fire/
Which have to fit correctly the brakes and have about the same this and that, then I can go with 305/ 35/ 20 which should be about 1 1/2 " wider than stock wheels in the back giving me a slightly larger contact patch more as the same a hellcat sports. And I am going to go with summer only type since I will not be driving below 20 degrees versus Pirellis don't even like it below 40 degrees....
https://www.tirerack.com/tires/tires...omCompare1=yes
The combination with the right width and height with the right wheels should make it more sticky to the ground and feel better with still some improved wear over stock Pirellis which suck....LOL and hopefully being a little stickier remove some of the unintended burn out I get from being so high in torque even with 3:45's.... Just my thoughts on what I am going with, and over the Wheels I am running now I should save over 6 lbs per wheel and make more power get to the ground.
That's the best I could find of the wheels I have now online as far as wheel weight I had to go to like amazon for shipping weights or a what have you as things are not readily out there...say like the weight of a wheel you think is cool may be bad for performance...and then pit from lousy chrome, just as I could not find the stock starters torque amount reading everywhere...…. And so you know If I were you I would get my starter from powermaster because …… Header heat stroke happens and your in the heat cooking a starter especially with tracking...… read the reviews it tells about a installion tip and how it performs with more torque than stock ...good luck.
https://www.amazon.com/Powermaster-9...ustomerReviews