With the right gear out back probably mid 120s. Right now its just over 120 through the traps but I reach 120mph 100 feet before the traps because of my 4.10 rear gear. 6500rpm in fourth = 120mph. Ive tried shifting into fifth but its only in gear a split second before the end of the quarter. Doesnt help any. I need to go with some 3.73s soon...........Al