Spring Rates for 2nd Gen Firebird???

[Skip Fix]

I think Guldstrand told me my TA front springs from them were closer to 740. For my driving and stock TA rear springs I liked a 5/8 rear bar with them.

[blackknight]

Thats for the breakdown on the motion ratio, I had never heard of that.

heres the rest of the info on the car....(the cars a work in progress one job at a time).....

Rear end is stock 8.5 10 bolt with 3.42 open diff., stock 305 chevy with cam, carb, manifold..about 300 horses. Stock control arms with the polygraphite bushings. Alignment specs are -0.7 camber, +1.3 caster, +0.19 is total toe. Tires are Sumitomo HTRZ(all directional) DO I HAVE TO MUCH TOE?????

the rear bar is a old Rancho bar from the 80's i picked it up from a guy who use to have a trans am race car. Rancho doesnt make car stuff anymore, only trucks.

the car seems to only plow when your turning on a bumpy road or if you have hard braking(heavy load) in a turn...it feels like the car is bouncing on the bump stop and that would explain why I get the front end to push. Usually plows when im turning from 35mph and up after a decrease in speed, usually from like 45-65mph. Slow 90 degree(like residential streets) hammered in second gear are no prob..no plowing.

the bump stop is a polyurethane stop, so it looks brand new, but u can see how it has hit the frame alot. ALSO JUST A QUESTION? At static ride height...I have about 1 1/2 inch clearance between my frame and my lower control arm bump stop, the QA1 lowered the car about 2inches. Is that enough clearance...what do you guys have.

Yea I have to get a larger front bar, and I am going to get a stiffer front spring, I have to do a little shopping around and call QA1 and talk to Global West and see what is available I might have to go back to a traditional 650lb spring with a QA1 12 way shock and ditch the coil over, which suckS cauz it was expensive.

That should fix my prob and if it doesn't I might try taking off my rear bar and see how it rides.

thanks