1/4 mile vs 1/8 mile

Went from 3.91s to 4.30s (the 3.91s were worn out) and got nothing in return on the 1/8. Bumped up to 28" tires and now hit its trapping about 6500 on a fast 1/4 mile track. Wish I would've went with 4.10s even though a majority of time is spent at the short tracks.