Addressing the question you asked in the beginning: Your blower motor is great and puts out insane power for cheap and is fairly simple. Now everyone here has only gone into saying that the turbo setup will give you the same *power* but there was only a little delving into the *rate* of your power increase. If you really want to be convinced, instead of reading about other peoples buildups on not similar engines, buy yourself the new program DynoSim. For cost and setup and space, piping, plumbing then yes its a lot more work. But if you already have an efi setup, since with efi you are going to have a very reliable turbo engine, you don't have to put another 3 or more thousand into that. You can easily surpass the power numbers that you make with that 1071 and do it quicker. The whole turbo lag thing isn't really an issue. The lag they speak of is when poor lowly 4 cylinder engines try to make *big* power and throw on a huge turbo. With a big block and a proper setup you will get phenomenal response and you can be pushing 1000 ft lbs by 3500 rpm. The *rate* of power increase, the steepness of the dyno curve will be a lot more than on a Roots blower, the seat of the pants feel will be a lot more. They are easy to drive on the street and are fairly reliable. You can set them up any way you want to really with today's aftermarket for turbos. A 454 can put one decent sized turbo on it and push 1000 and still hide under the hood. With an intercooler you might lose say 1.5 psi at most with all the tubing and cooler but the added density will more than make up for the loss. Tune the wastegate/psi with a switch and you can run from street to track without changing belts. A 330 ci engine can make over 900 hp and ft lbs on like 20 psi boost but thats for racing. With a big block and 10 psi or less you can still make those power numbers you make now with your vision impeding Roots. (Don't get me wrong I think Roots blower are great, just not as efficient) Not only will you make those numbers, you will make them FASTER. For the time and money spent....its up to you completely. But in my opinion I think if you wanted to really go for a ride, then turbo your engine. Yeah, you have to cool the shaft with oil, yeah its best to intercool them, yes the piping and headers are somewhat costly and fill up the engine bay. Thats why its up to you. What I see when I look at the dyno comparisons of a Roots and a turbo motor making the SAME peaks is that the turbo will make WAY more power in the average. Lots of people say they are only good for high rpm, but thats not true, they will make even more power down low than a Roots will. It's just that the problem is there's hardly anyone out there doing it. The ricers have done it but thats a different ball game entirely. Problem is that theres not enough easily attainable info out there for people who want to turbo a STREET motor. So when people do do it, I don't think they are doing it properly. They are out there, they are just harder to find. The Roots you can just almost throw on a motor, carbed or not, and make big power without emptying your pockets. Is the power worth it to you. Turbos aren't hugely expensive, they are just seen as too hard to get into, ie, setup, cost, tuning, plumbing, piping, intercoolers, increased fuel setups. I think I talked too much, but whatever, I am just trying to stress to you that the turbo is a good investment. K, im done hehehe, its all up to you in the end. You can make much more power with them if you wanted to, you can make it faster, they dont lag like people say, and they are really reliable. Hell, people have turbos on airplanes, if they weren't reliable they wouldn't be flying with them heheh.