My '71 SS has the stock F41 suspension, but as it's a smallblock SS the front coils are for a small block. I will be installing a big block. Can anyone reccommend a good coil that will hold up under a big block, and be good for a street car? The car is my daily driver and will see the track maybe 6 times a year and such, so comfort and all is more of a concern than for drag racing, but would like for them to be somewhat effective for racing. Thanks.

P.S. the engine will have aluminum heads, intake, and pistons, if that matters. 454 BBC