Sounds familiar,,,Engine Works, available @ Nickles Performance in Tenn. #985-16 spring will get you about 225# @ 1.95". I have used them alot on small block Chev. They will go around 680# open and are good to .720" lift @ 1.95". I will have to look later,, but I think the #987 will give you more seat pressure with similar open pressure. Possibly a + .050" loc with the 987 to get where you want to be. I have had good luck with the 985 for years, usually good for a season on dirt track motors. Probably a LOT more on drag applications. Forgot to add, VERY affordable @ $200.00+- few bucks.