There are a couple of things you did not state

What tracks do you run--What make of car you drive--What motor do you have (alum. or steel block) What style of bird cages do you have-Wheel base of your car--4-bar or coil front-What is your waight.
I would guess that you have a 4-bar or 5- bar with standard wing bird cages. If this is correct and you have a alum. motor, I would say you are blocking your car to high. Another thing is, how much driving experence do you have. If you had a lot, you would already know if the roll center is to high in your car. If you run Paragon, you could get by with running your car higher until the track took rubber. My thought would be, lower the car-use 1/2 in. higher blocks and run the stops till they touch (finger tight) and then put the weight into the car like you normaly do. This would be, if the car is a 4-bar with std. bird cages.
Every one has an openion, this is mine with out looking at the car and assessing the track conditions for the night of racing.
Phil Poor