I went with Langdon headers, offy intake and Holley 0-8007 (390 CFM) and it really woke the old girl up.
Couple of things: First off buy the heat plate from Langdon. It cost me more to make my own than his price. Secondly when you get the offy get the linkage kit. You'll want to use the stuff that goes from the carb to the stock linkage. From there I used the stock stuff, extended the arm with a massaged piece from the offy linkage, and went from there. You'll end up trimming the stock throttle cable a bit along with it's casing because the new location for the bracket is closer to the firewall. Finally: make sure there are no binds. My stock linkage had an arm that hung down too far and bound up on the heater hoses on me. Happened Friday at WOT. Darn near wrecked my car! Had to trim that bit off and file it down so there's no sharp edges. I now have 1" of clearance all around so no more problems.
Stock settings on the Holley are good. No need to change power cam or jets.
I'm spinning my 255's now with this set up.
