Heads up hand, open raise facing a big push

[donny5k]

He is somewhat aggro, don't have stats on him. PP 10+1.
Is this an easy call getting 1.43:1?

***** Hand History for Game 2310537811 *****
200/400 TourneyTexasHTGameTable (NL) (Tournament 13654672) - Mon Jul 04 20:34:49 EDT 2005
Table Table 35259 (Real Money) -- Seat 6 is the button
Total number of players : 2
Seat 3: XXX_10th (4640)
Seat 6: donny5k (3360)
donny5k posts small blind (100)
XXX_10th posts big blind (200)
** Dealing down cards **
Dealt to donny5k [ Ad, 8d ]
donny5k raises (500) to 600
XXX_10th raises (4440) to 4640
XXX_10th is all-In.
donny5k ?????