How can people only get 100 hp or 120 hp with a turbo out of thier A15's? I live in canada and me and my mechanics teacher both have 1970 datsun 1000's with a15's. I ordered some racing engine parts from japan like 1.6L pistons, big valves, Race Crankshaft and had my engine bored and polished, put a header on, put in a 300 degree nismo cam, and have twin weber dcoe's. Me and my teacher got our cars dyno'd and my teachers car had about 112 hp and my car had over 150 hp. We must be doing somethin right. I have put about 3+ k into my engine.