theres only so much N/A building you can do if you plan on using pump gas... also a wicked all motor b16 would be a pain in the ass in many normal driving conditions. If you can't turbo, I'd get a wet nitrous kit and squeeze off 50hp shots... that in conjunction with some other thoughtful mods (i.e. moderate cams, I/H/C/E, etc.) would be pretty peppy. As long as youre smart with it, nitrous is no more dangerous than boosting. Another potentially quite powerful (although not as economical) option would be supercharging. That can also be done in conjunction with nitrous, but that would be pushing it for stock b16 internals.
Just curious, why wont you turbo? Because thats really the best way to make your motor "fats as shat." :chuckles: