Generation III External Engine - Possible TPS and MAF problems...Help!

So I bought an F body. Been driving it around a couple days and everything seems fine riding around town. Took it to the track today with some drag radials on it. On the first pass I nail it, she hooks and then the SES light comes on and it just noses over. Absolutely NO power at all. I didn't take any tools with me so I drove it back home. It drove as it has the last couple days, fine around town. Hooked up my scan tool and it had 2 codes for MAF and one for TPS.

I don't know if I should replace them or what. Really discouraged. :bang: