olddog First I would go to 1/2 tank of gas unless you are trying to run light. Next need your body in the seat with helmet and suit. What are you looking to do with the car??? Autocross or roadrace?? If so you will need higher rated springs and more adjustable shocks for the track. The 48/52% front to back weight is good, but need your diagonal weights and camber,caster numbers. Toe readings also. I run a BBF all aluminium in my car. Street front springs are 275lbs per inch compression single adjustment, I have gone to 450lbs springs and QA1 dual adjustment shocks. I run street class in autocross. The car dones not plow in the frontend anymore, and went 4 seconds faster in roadracing on the same course. If you are really serious about setting up your car, you need to get a log sheet and tiregauge and temp tire readings.
WWW.hrpworld.com Has all the stuff you need for your car if you want to get into competition, you might want to go to a driving school and get a couple of the handling books to read that are on the market. The easiest way to do street and racetrack is 2 complete setups of springs, shocks, wheels. Add a fire system Halon 10lb with 3 jets for the motor, you, and the back of the car, fuel tank area. Full roll cage with foam wrapped around the bars. I don't know what size you brakes are and size of rims for your wheels, but get the biggest brakes you can. They are your friends.
Learn to understand what your car is doing and to make adjustments is the biggest thing to going fast and having fun. Drive within your limits
I do. A cobra, any cobra is a handfull of car to drive, it's faster than most people react and very unforgiven when you made a mistake. Been there, learned that. Lucky or GOD, have no damage to car yet. Been close. Good luck If you want to talk call me 732-254-3536 in the evening after 8:00pm est