Trans brake

Check out AandA Transmission they have more than one valve body to pick from. I have been drag racing with Rick's transmissions since 1993. Only problem I ever had was self inflicted. Great people to deal with. I average around 500 pass, before it needs to be freshened. That's in a 2850lbs. duster running between 8.70 to 8.90 in the 1/4.