I don't agree at all.

There is nothing safer than a strong grommet in the firewall.
I have been doing that for years, before i even started engine conversion.

This way the plastic FI line behind the firewall is not subjected to vibration:
http://www.benplace.com/subaru/vanaru46.jpg
http://www.benplace.com/subaru25/cooling_sys_03.jpg
http://www.benplace.com/subaru25/cooling_sys_12.jpg
http://www.benplace.com/subaru25/subi_3032.jpg
http://www.benplace.com/rejean_subi1/rejean_subi124.JPG
http://www.benplace.com/rejean_subi1/rejean_subi126.JPG
http://www.benplace.com/gilles_subi1/gilles_subi19.JPG
http://www.benplace.com/francois_subi1/francois38.jpg

I can't show you 1000' like you did but i can show you a good 50 picture if
you want...

Ben

On Mon, 8 Jun 2009 13:23:58 -0700, Scott Daniel - Turbovans
<scottdaniel@TURBOVANS.COM> wrote:

>sorry........
>worked on way too many thousands of vw's that had a fuel line in a rubber
>grommet.....
>and eventually it wasn't very good, and things chafed, and eventually
>leaked.
>I stand by my recommendation to just go around the firewall, not through it.
>
>sometimes very low tech is actually better.
>Scott
>www.turbovans.com
>----- Original Message -----
>From: "John Meeks" <vanagon@gmail.com>
>To: "Scott Daniel - Turbovans" <scottdaniel@turbovans.com>
>Cc: <vanagon@gerry.vanagon.com>
>Sent: Saturday, June 06, 2009 8:36 PM
>Subject: Re: Grommet for fuel hole in fire wall
>
>
>On Sat, Jun 6, 2009 at 3:20 PM, Scott Daniel -
>Turbovans<scottdaniel@turbovans.com> wrote:
>
>> the other philosophy, which works absolutely perfectly with anything
>> that's
>> floppy ..........like fuel hose.........is try not to mount it 'too well'
>> ..........mount it little loose, so no forces can generate on it. - - ,
>
>FWIW, The grommet Robert sourced  fits the hole in the firewall
>perfectly while allowing plenty of room around the fuel hose. There
>will be no chafing or rubbing with this set-up. I installed one today
>and am happy with the result.
>
>John Meeks
>'91 Multivan
>Northern Michigan
>
>Vanagon Rescue Squad
>http://www.vanagonauts.com/Vanagon_Rescue_Squad74.htm
>
>Radio Call:KC8ZFN