Schubeck roller lifters, stroker HP estimate

You're right about the heads, I think I'll go with the Econo W-2 cast iron heads and have them ported, they should have 300cfm capabilty, mopar and Indy both offer single planes for this combo. I checked the Schubeck web site and their Mopar lifters do offer pushrod oiling as well as offset pushrod seats, but I won't be needing pushrod oiling with the W-2s. Man, those lifters are pricey! I think I'll go with the Comp Cams EDM Lifters you had suggested. As far as blocks are concerned, I checked the MP catalog and they do not offer a non-siamese, 4 bolt main block with 59 degree tappet angles. They do offer a HD 340 block but I do not know if it has 4 bolt mains at this time.