There's a big misconception with EGT's. Most people think adding or taking fuel away is the answer to getting combustin temperatures right... rich is safe, right? not quite.

You can run too rich and end up burning all that fuel in the manifold, making EGT's read higher because that's where the probe is. Also, retarded timing can do the same thing, raising EGTs. If the timing can stay advanced, more of the fuel will burn in the combustion chamber, and that will lower EGT's. So basicaly, EGT's are a better tool for monitoring timing advance than they are at monitoring fuel.

If you can't monitor your timing with something like Hondata or DSMlink, you won't really know why your EGTs are doing what they're doing. Your EGT gauge just becomes a sort-of safety net saying "woah!too hot!back off!", and really won't provide solid tuning info without timing info. The alternative to Hondata or DSMlink is to pay for dyno time with A/F monitoring once you know it's ballparked.

PS: aside from all that jazz... pump gas isn't very stable at 21 PSI, so that's probably why it's running hot more than anything else.

Shifty: sorry 'bout the thread jack unless you don't care/mind.