CAP 232 -66" from Giant Scale
UPDATE -
I took the downthrust back out and added more wieght
Dukasso was right, sorry Dukasso for not listening. I added about 400 to 450 grams of wieght to the front
I changed the 4 mm bolts holding the landing gear to nylon so I don't rip the under carage off, hoping the nylon bolt will snap first.
I tried a 13-6 prop but going back to the 14-6.
With the amount of wieght you need in the front a Zenoh 23 might be a good engine.