Thermoquad

Im guessing my 440 makes around 450 HP currently and the thermoquad has no problem running it nicely. I modded it years ago with the direction of a guy who used to be the thermoquad guru on moparts. The things i remember are drilling the primary and secondary jet sizes out. Drilling the pump shot squirters out, plugging the 2 air bleeds off in the front of the choke tower (not all Thermoquads have these, mine did). I also had my choke horn milled off for more airflow. This thing kicks *** on mine, i will say that! If yours doesnt make enough vacuum to hold the metering tree down at idle, you can clip the spring a little at a time until it works. The thing i can not remember is if he had me drill the secondary spray bars out or not and if he did, how much..
I plan on adding trick flow heads and a bigger cam in the future and will still be using my thermoquad.