ok i am the guy that has all the posts about the gsr build stock valve the super highcompression well i rebuilt it to a 82 mm bore with nippon racing pr3 copy pistons je rings and acp race bearings complete rebuild crank up the head is gsr valves type r springs titanium retainers and type r cams nothing special?? how many miles do you feal i should go for a good break in before i hit it hard i am getting it tuned thursday and running on wendsday commerse is have the tune fest w/e friday and i would love to run it so what should i do??