I've been disscussing the different length runner with my engine guy for a bit now. His theory is the same, different lengths spread the power over a larger range in rpm. We still haven't flowed the heads yet, I'm doing the bottom end right now. After the xmas shock on the bank subsides, I'll get started on the head and maybe figure out some cfm numbers and design runner size and length.Also plenum size is something to consider. Panic- you may be right about the 20" but I'm gonna see what I can do. I figure even if this idea isn't any better than stock, at least I can say I built it myself, and I don't think it can be worse than stock.
