The governor’s proposed Delta tunnels ran into a roomful of skeptics Monday – an influential group of San Joaquin Valley farmers who remain unconvinced the controversial project will deliver the water they need at a price they’re prepared to swallow. Three weeks after the tunnels received a crucial green light from federal environmental regulators, the $17.1 billion project got a cool reception from nearly 100 growers who farm in the powerful Westlands Water District. Provided with detailed financial projections at a Westlands board meeting for the first time, the farmers suggested they aren’t ready to sign onto the plan.