Do I need a new converter?

You launch and a bit after the 60 it “comes alive”..... converter converter converter!

im with B3... more camshaft!
If you don’t have a billet front drum in that dump truck trans get one! ....or better yet put that money towards a 904 since you’ll be converter shopping anyways :)

ive so hopelessly ruined my Duster “going faster” that it’s going to cost a ton to go back..... be careful out there :)