I am currently in the process reassembling my 400 small block. This time around, I am using the Comp Cams 282S solid cam. The oil pump is stock with a high pressure spring in it. The car mostly sees street use, but it does occasionally get autocrossed and drag raced. Do I need oil restrictors in this engine? I am using Comp Cams solid lifters. Do they restrict oil to the top end of the motor when compared to a hydraulic lifter?