[fastd]

I think you need to address your power issues before you make a change to the rear gear. You're current set 3:31 and .82 5th gear is fine! Figure out why you wheel hp is just 360 when it should be closer to 500...

At the end of the day, the 3:31 to 3:73 swap really isn't gonna change your life very much; I think you're setting yourself up for disappointment when you should be focused on your cam/balancing out your engine set up.

And don't junk the 427w; it's (arguably) perfect for your car - just make it run better.

Can I get an "amen" Brother Dwight?