Doug's D453 headers and 4speed cars

I've read that some people have put dougs or tti headers on SB A's with 4 speeds and not had to do any modifications to the z-bar. I've never been that lucky

The z-bar almost always hits about 12 o'clock on one tube. The other issue is it swings in a decreasing pie shaped space. I've moved the down leg arm by putting an S bend in it or cutting it off and welding it back on.