i've got a 350 sbc block that i'm trying to rebuild for cheap, and i've got a ready supply  of 200 octane fuel (water ethanol). how much horsepower can get with my 350 and how?  

bore it .30 over get a 400 sbc crank, 327 rods...double hump iron heads off a vette or old z28 3 angle valve job. With the right cam and carb (depending on compression) and methanol(which is what I have on a big block) you CAN push anywhere from 600- 900 hp......