So I bought a 2005 Dodge Ram slt with a 4.7 magnum in it then 1 month 1 week after owning it it dropped a valve seat just to test my patience. Now that I have the heads torn off the motor I was looking at airram.com's rebuild kit with Pistons. I was wondering what kind of gains I would get out of upping the compression to the 10:1 Pistons? Also I think I was reading somewhere that I can use the 08 heads which are better? Do they actually fit or should I save up the loot and get the economy heads airram offers? Also I see vids of Rams with 206 208 and 212 cams but I can't find cams annyywhere?? Where are they getting these?