Need some opinions to make a good street suspension

I went to Timberline dodge in Portland and picked up Mopar Performance .920 T bars and HD 340 replacement rear springs, Summit Racing for KYBs and a complete Urethane Kit, and my local Napa store for 12 inch cop car rotors and new calipers. Big tie rod ends and fast steering arms from Firm Feel. The steering box and tubular upper arms will also come from them. The big rotor caliper brackets, cop car rear 3/4" bar and a 1 3/8" front one off a 90 Seville that I'm shortening the lever arms on came from various junkyards. The K frame will get strengthened as per instructions from Firm Feel. Piecing an 8 3/4 rear end together with a 3.55 sure grip I've been hoarding.

Do yourself a favour and call Dick Ross at Firm Feel. Straight shooter very knowledgeable guy with excellence products. The website is informative too and details their product line.