Right now I'm trying to decide for fuel injection what filters/pumps I want to use, but before I buy anything I am sort of wondering how adapting fuel lines to different fittings work? Like, how do you make a fuel line that adapts to a screw on fitting to the fuel rail? Do you know of a website or book that would describe making fuel lines? Also on some high pressure(100psi) pumps that go after the fuel pump they have barbed fittings on the inlet and the outlet, or these sufficient for keeping a good seal with the 40 psi recommended in the article?

Oh, and at some point when I emailed you a question about fuel injection you said that you couldn't get the IAC to work correctly, I was reading through the GM manual and noticed on later models GM connected it to a speed sensor and coolant sensor(seems like a couple of others sensors). I was just wondering if you ever tried these though it doesn't seem like a speed sensor would easily be adapted.

One last thing you might be interested in seeing: www.customefis.com


Thanks!
-Shivadart

Shivadart,
I used NPT/barb fittings everywhere except at the Accel GM style adjustable regulator. These fittings have been on the car for a number of years now without any problems. If you use the NPT fittings make sure you only use the hose that has "fuel injection" stamped on it and use only the special "fuel injection system" hose clamps which are not the worm gear type.
However, I wouldn't discourage you from using the AN type fittings. They are definitely superior. Occasionally I see articles in various car magazines on how to use these. The current (Jan 2005) issue of "Car Craft" has an article on how to install AN fittings on Earl's new Pro-Lite 350 braided hose. This looks like an interesting alternative to stainless steel braided hose. I'm sure you could get additional information with a Google search.
As far as the IAC motor is concerned I did disconnect mine shortly after I had written the article. I simply set the idle with the throttle position screw on the GM throttle body and I like it much better. The IAC seemed to have a mind of its own. Of course the ECM does send the signal to the IAC based on information that it receives from other sensors like the temperature sensor, so in that sense it is connected to them. My car runs very well without the IAC and because it is just one more thing to go wrong I don't use it.
Bob D

Thanks, I'll check out the current issue of Car Craft(I've got it somewhere)

-Shivadart