4 handed, big stack limps, hero with 88?

[vinyard]

NL Hold'em $20 Buy-in + $2 Entry Fee Trny:13700860 Level:6 Blinds(100/200) - Wednesday, July 06, 15:58:54 EDT 2005
Table Table 13805 (Real Money)
Seat 9 is the button
Total number of players : 4
Seat 2: shortie1 ( $1260 )
Seat 3: shortie2 ( $910 )
Seat 7: villian ( $4085 )
Seat 9: superhero ( $1745 )
Trny:13700860 Level:6
Blinds(100/200)
** Dealing down cards **
Dealt to superhero [8h 8d ]
villian calls [200].
hero .....

Big stack is a solid player who has his chips from winning some monster showdowns. He hasn't been playing the big stack well - he's limping a bunch and not pressuring anybody. I have run him off my BB twice in the last three orbits and I just survived a desperation push of J9 into AK against another player to stay alive so my FE might be hurt.

Clear push? Thoughts would be appreciated.