Spring Rates for 2nd Gen Firebird???

[blackknight]

I have a 78 Bird With alot of work done and I am looking for some advice on some fine tunning the suspension from you guys.

I have 275 rubber in front and 315 in rear, lowered body mounts, all poly graphite bushings, 150-180 progressive rear leafs with 1 1/2 drop with QA1 12 way adj shocks, Baer track kit all around, QA1 coil over(250-350 progressive spring) with 2 in drop with 12 way adj shock. I have subframes and g braces and sway bar braces. stock 1 inch sway bar up front and 1 1/4 racing rear sway bar with adjustable stiffness collars. the car is driven on the street but does see some track time.


I did the brakes and wheels this summer. now that i have been driving it the front feels a little soft and I have under-steer. the front always plows. The back is glued between the 315's, solid leafs and the racing sway bar.

Are my front springs too soft, should i go stiffer???
Any other input would be appreciated.

thanks

Lucas