i'd try Pro-blend racing formula next time and assembly lube. Back when i used to sell it , i tried every engine assembly lube against Pro-Blends , nothing was even close on the demo-machine.
Pro Blend gets a bad rap because alot of people over-used it and didn't understand how it worked. If its in the engine already , it can't do anything else by adding more. Then they'd take their oil pan off and find alot of buildup in the pan and cuss Pro-Blend. I no longer sell it but Jegs does
here is the assembly lube
here is the engine treatment
If someone wants to use alot of Pro-Blend in their engine of a drag car ( it does provide amazing results and then I guess people just have a natural tendency to over-use it ), this is what I'd recommend you do. After you add the first bottle, only add more right before you are going to drain the oil with the engine running and up to temp and set up where you can let it run for 10-15 minutes. ( this is if you want to keep your engine protected as much as possible without having any build up in the pan ) Pro-Blend recommends you add a full bottle every 3rd oil change but that senario may not work for a drag car. With the engine running , add 2/3's-3/4 of the bottle with it up to temp and running. After 10 minutes or so , stop the engine drain the oil hot. Then change the oil then start the engine , get it up to temp then add the remaining Pro-Blend that was left over. Pro-Blend has to be given the chance to wear off before it can provide any more of a added benefit. It is not oil itself , but creates an enviroment between 2 metal surfaces where oil's ability to prevent metal to metal contact is raised to over 90 % from around 45 %. It does this by treating the metal surfaces where oil is failing and changes the surface adhesion capacity of the hot metal where oil will bond to the heat and the many layers of a film of oil will now shear properly and oil will provide lubrication qualities that are truely remarkable. Its like " untieing the hand behind oils back " so now it will perfrom like its suppose to.
Pro-Blend will usually drop the water temp of a full size pick-up truck 15-20 degrees by treating the OIL. Yes it usually works that well. This should help alot now since the oil companies aren't treating the oil themselves the way they used to.