XRAY - Model racing cars

I just finished building my new T4. It weighs in almost 140g under the ROAR min of 1380g.
Why is this car so light? What's the best way to add weight? I'm not trying not to sound like I'm whining, but this is getting real expensive, so I am...
Brass suspension holders? $$$- additional $150
Heavier lipos? $$$- I've already spent $300 on batteries.
Under lipo weights? Slow boat from China (no joke)
There isn't enough room to put 140g of stick on weights.
Races are in three weeks or I wait until July to race.


Trinity 17.5 Monster
Futaba s9551
Futaba receiver
Protek 6300 270g
HW Zerun Stock Spec V3.1

Why do you have to buy brass from China? Your lipo weight is very Light!! But go to a local engineering or sheet metal fabricator and ask them for an offcut, Stainless steel is also a heavy metal, not as Brass but a piece free from a scrap bin might weigh 50-60g

Thank you! I picked up some brass from the local home improvement store. I have to cut it to the size and weight I need to balance with the other side. I will use servo tape at one end to retain flex. I am still going buy a few brass components from 7075.it later, but they are expensive.