welcome to HS glad to have you aboard....I would think w/ 4g's you could pick one up w/ no problem....
As for a way to add a little HP..you could get Intake/Headers/Exhaust to let the motor breath better...From there you could add like cam gears and then have it tuned for a few more horses...Then if that's not enough you could use the Laughing gas..lol
Hope this may help and look forward to seeing you around...