[Hand]
I have hard time balanicng my range on coordianted board.
So, here's my hand I played 2hour ago.

7-handed live 1/1/2(straddle)

[Stack Size] Hero(UTG+2) 150, HJ 120, BB 200
Preflop:
Hero(UTG+2) opens to 10 with 88, HJ, and BB calls.

Flop: 5 6 7 rainbow (30)
BB donks 10, Hero(UTG+2) calls with 88, HJ calls.

My thought:
A lot of his range might be pair+SD. Plus, coulple of sets, two pair. I feel like I have very little C1 hands. Very few combos of top set and straights in my continuing range. (7 out of 56 combo). I flat thinking I should not have raising range here.

Turn: T (60)
BB checks, Hero(UTG+2) bets 50 and HJ all in to 70.
Fold and I call.

Bet - C1/C3
Check - C2

C1(Value)- Hot Red
C2(Medium Strength) - Green
C3 (Bluff) - Pink

My thought: 8 is a such key bloker. Since there was no raise on the flop. I feel pretty good. I will have TT, 77, 98s for my C1 (value) along with my C3 (Bluffs) that contains 9,8 here.

I think my bet can make T9, 99 and A8s, A4s, A7s fold.
(My read on opponents - A8s, 4 or lots of 8)

Q1) AA, KK, QQ, JJ is very hard for me to play here.
(Especially it is not heads up. But checking feels like I am letting my opponent realize his high equity.)
How would you play this hands?

Q2) On the turn, I heard bluff/value ratio should be 50/50 from many people. Here, My value to bluff ration is 10/15. Am I over-bluffing if I plat this way??

By the way, HJ shows KK.