Did I play this set correctly?

[Monty Burns]

Looking back at this hand (which was fun to play at the time) I think I blundered on the flop. Considering the coordinated board, my raise probably should have been much larger, right? What do people think of my line? How big should the flop raise have been (size of the pot?)? What about just calling on the turn when the good card comes? Should I have raised while there were hands that might still be drawing? If so, how much?

Thanks.

***** Hand History for Game 2475118942 *****
15/30 Tourney Texas Hold'em Game Table (NL) (Tournament 14530578) - Thu Aug 04 01:53:45 EDT 2005
Table Table 35276 (Real Money) -- Seat 5 is the button
Total number of players : 9
Seat 2: kigrpo (1090)
Seat 3: Nasty23 (730)
Seat 4: Kingshockey4 (695)
Seat 5: MrBurns8 (760)
Seat 6: CT4568 (870)
Seat 7: MadMan7x (655)
Seat 8: KopyMSU (740)
Seat 9: rastaboss (1660)
Seat 10: JohnQGambler (800)
CT4568 posts small blind (10)
MadMan7x posts big blind (15)
** Dealing down cards **
Dealt to MrBurns8 [ 7c, 7d ]
KopyMSU folds.
rastaboss folds.
JohnQGambler folds.
kigrpo calls (15)
Nasty23 folds.
Kingshockey4 folds.
MrBurns8 calls (15)
CT4568 calls (5)
MadMan7x checks.
** Dealing Flop ** : [ 8c, 7s, 4s ]
CT4568 bets (15)
MadMan7x calls (15)
kigrpo calls (15)
MrBurns8 raises (70) to 70
CT4568 calls (55)
MadMan7x folds.
kigrpo calls (55)
** Dealing Turn ** : [ 8d ]
CT4568 bets (30)
kigrpo calls (30)
MrBurns8 calls (30)
** Dealing River ** : [ 9h ]
CT4568 bets (755)
CT4568 is all-In.
kigrpo raises (975) to 975
kigrpo is all-In.
MrBurns8 calls (645)
MrBurns8 is all-In.