Hello, I have seen your time slips posted a number of times. I currently have a 1998 explorer short block, afr 165 heads, and an anderson n41 cam. Weiand stealth intake, and holley 670street avenger carb. What spring/retainer setup did you use? Also do you have a part number the the rockers and pushrods you used? Thanks for the help, ive been back and forth between afr and anderson and neither of them can give me a straight answer.