4 link suspension cars should run Stiff sidewall slicks with natural rubber inner tubes bubble balance (preferred per M/T) starting with 16 psi air pressures then adjusting down - per M/T it is not uncommon to see higher air pressures ranging from .5 - 2 psi compared to other tire manufacturers
You can run no tubes just coat the entire i side of tire with dawn soap they wont lose air for most if not all the race season.on big tire cars it 60 ft .better without tube
so true and use only the dawn brand ... also virgin slicks are measured and the outside diameters are marked with chalk on the tire from the factory * they should be same o d or pretty darn close to each other