[90Five0]

I have about $600 to put into my car this month. I have a
1989 5.0 GT that is completely stock. I was thinking of underdrive pulleys and something else. If you any other suggestions let me know.

thank you

-Ryan

 

[QWIKSLVR]

completely stock?

throw a set of gears and a full exhaust system on it. You won't regret it.