455Grandville; I was refering to using just the 77-78 Carb. As for intakes, unless someone knows something I don't, then i wouldn't use the egr style intakes at all.
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As for cost vs. performance, I think he is thinkng that he'll do the 400 as a 400. The small valve heads are fine and is not any more expensive nor will they perform any worst than him going and finding a set of big valve heads and having everything done to those. Tho only advantage to him going and buying the big valve heads is wiped out by the additional cost or purchase, and that is the rocker studs. But I am of the opinion that the small valve heads once converted to screwin studs with the larger bottom dia., is actuly a stronger stud and less prone to break if someone ever steps up to high pressure/high lift set up. As for porting, that's a wash if they are done to flow the same.
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