So i have a friend that "knows a lot about engines". I say this because no matter what i say he will come up with some other thing to try to prove me wrong. To give you an idea of his knowledge of engines he doesn't know what block deck height is. Anyways we got into an argument the other day about what power adder is more efficient a turbo or a blower. He swears that a blower motor will out power a turbo motor any day. But I see lots of blower kits that are rated for 8psi and say 35% gain in power. But 7.5psi on a turbo is 50%. To me it seems like turbos are more efficient am i missing something?