1978 SF restoration, my first one.....

[strick]

that 90 might cause you some grief, particularly with the shift/throttle cables

I was thinking the same thing when I saw that. You may even have some problems getting the shift cables down thru the 90's at the level of the CC. An option would be to remove all 90's and just leave the long strait tubes in place and leave it at that. On my 20 I did not use rigging tubes as I felt that they would just take up extra space...and space is precious in a small 20sf.

strick