when you say core charge what do you mean, like give them my old ones? all new cams are like takin out the old ones and swapping them? so if it 599, do i get money back when i send them mine? it sounds pretty cool, how do they works, like hold my valves open longer, and let more in.

 

Core charge means you pay them the $400 or whatever it is, on top of the price of the new cams. Then, you send back your old ones, or 'cores' and they refund you that fee. This applies to a lot of rebuilt parts, like tranmissions, alternators, heads, starters, A/C compressors, etc.

The street cams are good, they hav higher lift but not much more overlap, which makes them perfect if you want to go turbo later. If you are positive you don't want a turbo, try the next step up, bt those lose a littel down low in favor af quite a bit more up high.