Stars million hand, horrible turn so turn my hand into a bluff?

[TwistedEcho]

Opponent is playing tight, something like 13/9/3 over about 80 hands. He has min3bet twice before (once vs me) and cbet both times. PT says he cbets 100%. Obviously flop plan was checkraise, but he decided not to cbet this time around. I have my stats as 15/11 and have been caught 3betting w/ JTh but otherwise only shown down a few good hands, most hands not being showndown. Opponent doesn't seem v good, or the sort of guy who cares too much about image

Seat 1: TwistedEcho (37583 in chips)
Seat 2: jaaaaaaack (45261 in chips)
Seat 3: BruteShade (31276 in chips)
Seat 4: Dewana (55121 in chips)
Seat 5: drago raro (73015 in chips)
Seat 6: Chase3303 (27400 in chips)
Seat 7: MIAMI JIM (4700 in chips)
Seat 8: GeneralStorm (9650 in chips)
Seat 9: plattsburgh (36435 in chips)
TwistedEcho: posts the ante 50
jaaaaaaack: posts the ante 50
BruteShade: posts the ante 50
Dewana: posts the ante 50
drago raro: posts the ante 50
Chase3303: posts the ante 50
MIAMI JIM: posts the ante 50
GeneralStorm: posts the ante 50
plattsburgh: posts the ante 50
drago raro: posts small blind 400
Chase3303: posts big blind 800
*** HOLE CARDS ***
Dealt to TwistedEcho [8s 7s]
MIAMI JIM: folds
GeneralStorm: folds
plattsburgh: folds
TwistedEcho: raises 1600 to 2400
jaaaaaaack: raises 2400 to 4800
BruteShade: folds
Dewana: folds
drago raro: folds
Chase3303: folds
TwistedEcho: calls 2400
*** FLOP *** [8c Qc 7c]
TwistedEcho: checks
jaaaaaaack: checks
*** TURN *** [8c Qc 7c] [Qh]
TwistedEcho: checks
jaaaaaaack: bets 5600