The Building of the Blue Mistic

just spittballing....

w/ the QA1's...I like the DS403. Keep in mind as the car is moving /accelerating, the front normally raises appox 3/4" to a 1".

you very likely can stuff the DS501 in there, however, I like the compressed spec/length of 11-1/8 on the 403 for your application.

I think your initial spring selection is right on the mark