My bad. The pipe it self is 16 inches long and the header is 3" long.If I measure from the center of the cylinder to the very end if the pipe including header it is 20" long . When i I measured from the center of the cylinder to the start of the pipe belly it is 13 3/4" long
I have CMB 90 in my boat. I don't plan on racing it. I just broke it in and ran 30% fuel in it. would it be fine to just keep the 1 oz hopper tank in it?
http://i860.photobucket.com/albums/ab166/blake250f/sightler.jpg heres my 50" sightler rail with the cmb 90. http://i860.photobucket.com/albums/ab166/blake250f/fmono2.jpg