Olddog A couple of thoughts, First a new motor or rebuilt motor is tight. Every motor I have done with hydro or solid lifters was done with single valve springs and 2,000 rpm breakin for 15 minutes. I use 30sae and 2 bottles of EOS
oil supplement. I run the motors 1 quart over full. After breakin I go to a 10-40w or 15-50 with 2 bottles of EOS. I DON'T use a windage tray or scraper for the crank on breakin. I want the
oil to splash around in the bottom of the motor. I think that some windage trays and scrapers limit the
oil from hitting the cam and bottom of the lifters. I would not break a motor in with valve springs with over 150 lb seat pressure. They are not needed on break in. Pre oiling the motor before startup is a MAJOR must. Assembly lube comes off after the first couple of rev's on the cam surfaces. The oil pressure moves it off the surfaces of contact. I have not read what is in the Lucas oil stablizer oil but it has a cligging to the metal parts. I have tested this with my tow truck. After 3 weeks of not running the motor starts without any valve tapping. The oil stay on the metal. Yes it may cause a couple of HP but I am not running nascar motor. Just my 0.2 cents Rick Lake