[Halon]

You think it's boosting? Do you not have a boost gauge? If you don't have a boost gauge, that should be one of the first things you get for that car.

Something else to check is your ignition timing. Check that and tell us what it's at. If you are in fact boosting just fine, but the car is extremely sluggish, your ignition timing may be off, causing a ton of knock, which is what is making your car accelerate so poorly.