I called Holley today.
They said if I send them my 90670-1 they will send me back a 90670-2 at no charge. They said as soon as they get mine they will ship the replacement. Apparently there were some problems discovered with the initial Truck Avenger carbs and they revised them (90670-2).
The Gen-1 Truck Avengers (part number 90670-1) had a couple of design problems. While Holley did not have a general recall on them, if you call and talk to them, tell them you are having problems, they will swap you the updated 90670-2 free of charge.
You can reach Holley's tech support Monday through Friday, 8AM to 5PM CST @ 270 781-9741.
In the meantime.......
I need to get the truck running as best I can. I told them the truck has been sitting for 2-years. They told me to clean the carb with carb cleaner.
My concern is getting it apart, cleaning it, getting it back together and it actually working. Wonder if I can just take it off and spray it out instead of disassembly. Not sure if I can get gaskets locally to take it apart.
If I can't get it running decent by Friday, I'll just take TRS-2 to Yankee Lake instead.