What's your goal with the engine? Will it be a race car or street car? Do you want a lopey idle or a smooth idle? Are you running an automatic or manual transmission? Does fuel economy matter?
It is a street car, but i want as mutch horsepower as I can get (with a stock engine). I want a middle term about idle and fuel economy, It's more like a weekend pickup, but sometimes I use it during the week, but horsepower is wat I want! 
lowrider (7/6/2010)
I suggest you talk to John Mummert. On the links tab he has a web site with alot of performance parts listed. But it would be best to talk to him and explain what you want. Great guy and always willing to share information.Ok, thanks for the tip, I'll send-him a e-mail.
*Assuming that this engine has now 120hp for example, I wonder if, with this preparation, I can extract a least some 50 extras hp??