hey guys well i f'd up my rear end. should i change my 430's to 391's or 373's? let me know asap about what to do.

Thanks

edit- also how will this affect my qtr mile times? i really think they'll help me out cuz i can not get traction at all w/ the 430's so i'm hoping this change will help out my situation thanks again

 

also should i go through moser to get them or will a set from summit get the job done?

thanks

 

ttt