This is one case where I can see the value of an aftermarket front suspension. The problem is, how many people build these cars? Here in CA and possibly in other states, Every F/M/J car is a 1976 and newer, requiring it to be smog tested with all original type engine and components.
Theres not a lot to get excited about with a 150 HP 318 in a 3600 lb car.

The "don't crush the frame rails by over tightening" warning is a design shortcoming, IMO.

for an extra couple of minutes, and an extra few cents, slugs with through holes could have been included that would allow one to tighten those bolts as they should be tightened. there also appears to be ample room to drill one hole oversize and insert those slugs into the rails from either side. that would make a sizeable improvement in structural strength in my opinion, since this is a "bolt on" setup compared to a "weld in" deal.

Here in CA and possibly in other states, Every F/M/J car is a 1976 and newer, requiring it to be smog tested with all original type engine and components.

I still haven't seen quantitative results on any of these kits that show the benefits. The benefits are always sold as "better", "chromoly", "coilovers"...yea yea.

Performance results? Kinematic improvement references [bump steer, camber curve, rollcenter migration, roll center changes, etc.]? How about manufacturing, what do the welding fixtures for these look like? How is the quality and accuracy checked before it is sent out?....Nada, they're sold on the premise that they are expensive and use coilovers so that must be better..

I'm with Goody

As for California emissions, last time I looked there was wiggle room there. Key is "engine replacement" vs "engine swap".

An engine swap would be putting a family of engine in it that was never an option. Like a 440 or any variation of Hemi.

Engine replacement would be putting an LA in where and LA was, like a 360 to replace a 318. As long as the 360 still sports all the original 318's emissions gear it is legal and no special requirements exist.

If you put a 440 in then you have to use a pass car 440 of same or newer year manufacture with all the 440's original emissions equipment then you need a BAR referee to verify and approve the swap.

A Diplomat with a 360 is fun, BTDT.

As for handling, every one bangs on the transverse torsion bar setup. I never had an issue with it's handling under performing for me. Anyone here actually have a personal example of this?