What are the performance effects of a light weight front bumper?

[Luis]

I have always heard that 76 Firebird Formulas are nose heavy. I have also heard great things about moving the battery to the trunk. I have recently purchased a nice looking fiberglass front bumper from Classic Ind. and was curious if the light weight bumper would have a similar effect as moving the battery to the trunk. The original weighs anywhere from 75 to 95lbs., while the fiberglass only weighs about 8 lbs. My suspension consists of GW upper and lower arms, GW subframe connecters, Koni shocks, approx. 550 lbs.front springs, stock rear leafs, H.O. 1 3/8th front swaybar and 7/8th rear swaybar, solid GW body bushings, 255/50/17 Nittos. I have never driven this car to its limits, so I am curious to hear about what potential my set up has around the driving course from more experienced drivers. Overall, my Formula is fun to drive on the streets, slightly stiff, responsive and it sets quickly(good weight transfer, I guess. I would appreciate any suggestions. Thanks. Take it easy on me guys this is my first post.