[Dark_5.0]

There is just no way around it, your car has a pretty serious issue.

You say your car weighs in at 3330 with you in it and you ran a 9.0 @77mph. That equals out to about 240 RWHP which is at least 40 RWHP low for an AFR headed 5.0.

If I were you I would pull the timing cover and set the engine to TDC and verify that your timing marks are lined up correctly. If they are I would take the entire engine apart and find out what the hell is wrong. There is no way your HP could be that low without something being seriously wrong with your set-up.

Good luck,