Formby Labour MP Bill Esterson said the majority of people who he spoke to after attending David Wilson Homes' exhibition were still not in favour of the proposals to site as many as 270 homes on the greenbelt land.
Bill attended the exhibition together with hundreds of residents at the Gild Hall Activity Centre last Thursday.
The developer held an original exhibition of early plans in August. The company said they had listened to residents' concerns and addressed them in their revised plans.
But Bill said the new plans still failed to address the primary concern.
Bill said: "David Wilson Homes presented their proposals which they say have been amended to take into account the main concerns which residents raised back in August. But one of the main concerns has not been addressed. The land is greenbelt.
"They have taken steps to tackle concerns about traffic and flooding, but I have concerns that neither of these have been addressed sufficiently.
"So from what I saw and heard, David Wilson Homes have a long way to go to convince most people that the development should go ahead."
Bill said the vast majority of people he spoke to were opposed to the plans.
Bill said: "People are against these plans. They are against building on the greenbelt and they have concerns that the development will create more problems because they believe the infrastructure, including the roads and drainage, as well as the local facilities, will not cope with this increase in Formby's population.
"Those who I spoke to me raised more questions and I will endeavour to get the answers. And I will continue to highlight in Parliament the long term damage the government's policy will have on our greenbelt."