any ideas to what could be causing it?! its a mk4 efi escort, basically when driving along and u put ur foot down more often than not now it'll jolt the car really hard almost like hitting a wall, i remember from a few years back when my old cossie inlet plenum gasket went it did a similar thing so is it likely to be the inlet manifold gasket gone or somethng else?!

It had been replaced a few years back but then engine had stood for about a year so.

Cheers

Tony