[dscott]

I always use the Carrera coilover setup with the big blocks. I use a 500lb spring. With the small blocks I use the 375lb spring. This is different than using the stock springs. With a small block I use a 250lb stock coil, so I'm not sure what rating a big block would require. I know the first car I built with the sideoiler I used a V8 Mustang II spring and it was to stiff and rode high. I wound up putting a V6 spring in it and it worked ok. Maybe DV will know which stock spring to use.
Don