I'm about to buy a 94 z28(auto) from a family member. He has done some work to it(i have no idea) and he says he dynoed it recently and he's getting 335 to the wheels but he doesnt go to the track. Around what should I expect in the 1/4 mile?

 

low 13's

 

335HP is EASILY a 12-second car with traction.

 

Very easily!

 

My buddys z was dynoed 335 rwhp,and he has clicked off 11.92 one time..It runs 12.10 12.15s no problem and its a 6 spd..So with a good light and 60ft you should be able to run 12s no problem

 

I would say 12.90-13.00, any deeper and I think you need to shed 500-700lbs. from street trim to expect high 11's bottom 12's.