[Nismo241]

The only way to adjust your cam is to have adjustable cam gears...but again a small gain if any.  In my SOHC I've raced three S13 dual cams at the track two of them have I/H/E and the other just intake.  The two with I/H/E ran 16.3-16.4@84-85mph, I ran a 15.8@88mph.  The other one with just intake ran a 16.2@86mph to my 15.8@87mph, yes I know driving plays an important role but look at the MPH, that tells hp more or less.  I've street raced with an S14 with intake and exhaust and beat him by about 2.5 cars, and raced another 92 coupe with intake and exhaust and beat him by about 2.5 cars as well.  I think that hp numbers are coreect but I think the more important factor is looked over...the power curve itself, I think that the SOHC has a wider power curve than the DOHC which is why they are a little quicker.