they are -3, I have a second set of all of the fittings you need if you want, I'll sell them for less than I paid to get rid of them.
You use bulkhead fittings to go through the firewall.. i'll post photos of the inside lines later this week when I finish then up.

 

cars looking good. I love white cars

 

Car is coming along very nicely. Rattle can FTW!

 

Bad *** project and its coming along nicely.

 

started on the cage today.. should have everything tacked tomorrow.. s&w 10 pt.

 

Looks great! awesome work. I love AN fittings, too bad they're so damn expensive.

 

Nice post more pics of the cage when you get them

 

really sexy cage how much it run shipped?

 

I think it was ~$600 shipped.. cant really remember.. could have been a little less

 

wow ballin you shure of the material it is made of chromoly??