The braces are based on the Hotchkis design. They call them handlebars. For years I looked at the Herb Adams ones. Just never pulled the trigger. Glad I didn't. This is a much better design. No cross brace on the HA design. I actually made a couple of sets of these and have enough material to make one more set. Quite a noticable difference from before to after. The front end feels very tight indeed. Almost like the car has a full frame. Not all bouncy feeling. You don't realize it till it's gone. the intakes are SS 1.65:1, the exhaust are HS 1.6:1 because I'm running a single pattern cam. Just gives a little more lift on the cylinder filling cycle.