I've picked up a 98 vortec engine to upgrade my Nova. I will be dropping it in pretty much stock with the exception of an intake & carb conversion. I'll be selling the car after enjoying it for a couple of months, so the goal is a low cost, attractive package. I'll be using a Pro Products polished Vortec intake. My question is what carb would match up well with the stock motor? 600 cfm? 750 cfm? I guess we could debate Edelbrock & Holley as well since I haven't decided yet.