Drag Racing Tech - subframe connectors help ?

I must use the subframe connectors for drag racing or not ? It will help me in the drag racing ?

They are not required for drag racing but they do help stiffen the car which makes the suspension do all the work instead of the body twisting and flexing. If you race a lot you can eventually end up with misaligned doors and T-Tops. They will help with drag racing because they eliminate body flex which allows you to tune your suspension more predictably.

and they will have gaurd against those nasty ripples we get on the quater panals fomr hard launches at the strip

Just get a roll cage. If you are drag racing, you are eventually gonna need one. It will stiffen the car up, and save your ass if you run into trouble.

What is the best roll cage ?

Do both.

Wolf is the most popular roll cage. Get the SFC's. They will save you from doing body damage to your car.

10 point chrome moly cage from Alston ;)