a boost leak would make it "blub blub" and fall flat on it's face... and run pig rich...

also, take a look at your fuel pump and alternator....

the fuel pump in my gray S14 was bad, rode around fine, hit the gas and "blub blub", replaced it and hauled so much ass made me wanna slap my momma...

similar situation in the last black car, alternator went out.. ran fine as long as i was around idleish rpms, hit the gas and falling on the face...


i'd say check for boost leaks, as it's the easiest, then check the alt for charge (watch volt meter under load), and then check the fuel pump, as it's a pain in the dick to get to...