High speed stability issues
Here's that alignment sheet.
View attachment 1715764635
I had an all stock front end and very stable at 118 mph.
Good strut rod bushings if using stock. I followed the old mopar chassis book. Plot your toe change( bump steer), I had to tilt both my idler and my steering box to minimize toe change.
After that I went to an alignment shop and had the front end set to 1/16 toe in, 2-3 degrees caster with an aftermarket eccentric bushing kit, but the main thing is I had these setting set with me sitting in the car with the front end jacked up 1 inch from ride height to simulate at speed. Car used to run 11:20 at 118 and I practically never had to move the steering wheel.
