Yeah, I was figuring I'd go with 1.6 since a lot of the cams I was looking at would be around .55 with a 1.6, and the flow numbers I've seen on the edelbrock heads have it flowing higher up until around .6 or higher. I'm understanding this correctly, right? @autoxcuda was recommending the .515 lift due to the budget aspect of my build so that I could use stock rockers, I believe? But, if I bought 1.6 ratio rockers, would they need to be adjustable with a hydralic flat tappet cam? Or one of the pushrods or the rockers would need to be adjustable to make it work? Pushrods and rocker arms are the pretty much the things I understand the least, being much more used to OHC engines.