Pro Touring 10K

replicaracer43 said

You need the springs to be close to zero arch, with the car assembled and at full weight ready to race. Otherwise your playing a guessing game on ride hight. And........ as I opined earlier, 200 LB per inch is way to much rate.......You really should be somewhere in the 140-150 lb area, depending on your F/R weight distribution and corner weights. Your fab work looks awesome by the way, very nice!

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Thanks, Yes I will agree that they need to be close to zero arch. The spring weights of a composite spring is not the same as a steel spring. I am skeptical as well, But I see that there are 60s Mustangs running these springs at 225 even 265 for a track only car's. The mustangs are about 100lbs lighter than my car from my research. I hate to think I have wasted 475.00 on a new set. I believe some conversation with Flex Form is in the near future.