I have the D-14 and am running curve 2, which is Y701-6. ADA head with 35cc domes, lightened flywheel with 62t elec., FPP mod pipe, dual 44 mikunis. Still debating the intake manifold, but I think it will be an R&D (close together) with either RAD131A, stock, or VF2. This depends on $$. I would...