Motor Tear Down???????

OK I'M GONNA ORDER MY GT THUNDER CAM AND PISTON TOMORROW. I TALKED TO THE FELLA THEIR AND HE SAID THAT I SHOULD JUST GO WITH A STANDARD BORE 12.5 TO 1 INSTEAD OF A 12.5 TO 1 416 PISTON BECAUSE OF THE COMPRESSION RATIO AND I CAN SEE WHERE HE IS COMMING FROM ON THAT BUT WHAT DO YALL THINK?

2 CAN SOMEONE EMAIL ME THE INSTRUCTIONS ON HOW TO TEAR DOWN THE MOTOR AND REASSEMBLE IT. I ORDERED MY SERVICE MANUAL A WEEK AGO AND IT STILL HASN'T CAME IN YET AND I HAVE TO BE READY FOR THE DRAGS THIS WEEKEND. OH YEA MY FRIENDS RAPTOR WAS CUTTING SOME *** THIS WEEKEND WITH HIS 680 KIT AND CAM.

THANKS IN ADVANCE!!!:devil