Join Date: Feb 2002
Location: N.W. Washington
i'll give a second to the pro action (pro topline, pro lightning ) cyl. heads. i put a set of 220 aluminum pro actions on my 406 and they make KILLER power, from idle on up to 6800 , which is all the farther i care to go with it, but they still are pulling at the shift. my personal feelings are unless you plan on going more cubic inches or going to make it a high winder, 7k plus, i'd stick w/ under 200 cc runners. i can tell you at any rate, i'm very happy with the pro actions, they are very well designed, reasonably affordable head, and mine flowed excellent when they were checked, flowing nearly same as advertised on the intake, and better on the exhaust by almost 15 cfm. people do have good points about running a complete package, since it's been matched for you, but IMO with a little reseacrh and self education, you should be able to match a good combo for yourself. just my opinions, good luck!