Nowhere to run with this slammish hand, so 2C as new minor forcing first. If opener shows 3 hearts with 2H, I would start cuebidding with 40 (not 3, that is a weaker hand, and 3C only a long suit gametry). With 3 hearts of opener 6-7 H is the end with enough keycards. If I get 2D (no 3 hearts, no 4 spades,I follow with 3H, which shows solid 6 cards heart suit and GF). Opener with doubleton must bid 4H, then I try 4 NT RKCB. If I get 2S, 3H is my reply again: not interested in spades, but have at least 6 good hearts, and want game. If opener has not doubleton support, I follow with 4C.