use the valvoline 30 weight oil ( running in oil)to run in the engine on the dyno ....I would not red line your new engine on this oil ,,,,once you have done the dyno change your oil ..I would put new 30w oil in again for 1000 k do not use synthic oil till done 5000....( if it is a dedicated race engine after the dyno change oil and race ...clearances will be done different for race engine usually)