Having read through the posts that I could find on valve springs, the TRW VS1020 was the most mentioned. TRW no longer exists and I can find no cross. I want a spring that fits the head without any machine work and will handle 6000 RPM on a roller or solid lifter cam. I tried going through the PAC catalog but ended up even more confused. The Buick 455 spring seems to be favored, does anyone have a part number for a spring that meet these criteria.
Thank you
Warren Grimm
