How to build custom cold air intake?

[ilovefirstgens]

Wellin an effort to streamline my engine bay im looking to replace my fugly 90* elbow with maf and airfilter attached, all of which are exposed, and the air filter is directly behind the radiator, so i cant imagine its doing too well in the cool air dept.


So for those of you who have built them how the heck do you? What size tubing, any flaring to get the hose clamps to stay on etc.