I forgot a question for Techinspecter. The ratio of runner+plenum to displacement is what I was alluding to. I believe that ratio is a little bit more favorable in big-block applications, but I could be wrong. Do you have any info or an opinion on that? I havn't measured it, but just I've based that mainly on the plenum area being restricted to the size of the carb base. That said, you can always raise the floor on the intake, and I know there's one out there that used to have interchangeable floorplates.