I am a big fan of the mono shock and my current racetech is set up mono. When you get into big HP or applications that are going to be a big tire hit like a NOS car then there is more stability with 2 shocks. If you are thinking blower, you can probably control the hit some with the tune up and be OK on just 1 shock. For guys that are putting down the big horsepower and making these sub 7 second runs, there is just a little more tuning available out of the dual shock car over the single shock. A bracket car does not change and there is very little tuning. A single shock in my opinion on your average dragster running into the 4.50's is just fine. Either way, single or dual, I would make it a swingarm and not a wishboned 4-link.