seriously dude i would heat cycle the engine it is the better way of breaking in an engine now days the on a block is very old school and can ruin the engine. U need to get the engine up to operating temps right away. here is how to do it and why it is better he is a very experienced with model engines and has a store where he ports and mods engines for poeple here in Australia look for the post by Massive Mods http://nitrobashers.com/forum/viewto...=asc&start=240


hope this helps dude that is what i use for my engines and it works good and it is quicker than the other methods