hi all,when going down hill quite steep in third gear at 30mph car feels like its got kangaroo petrol!probably does it in other gears,seems to be getting worse,cant feel any play any where on props,etc,any ideas what it maybe?wondering if its diff mount,what happens if its knackered?have also set tps to .3v when shut maybe this?just put coil pack conversion on but doubt if any thing to with that tho,any help suggestions much appreciated,thanks col93saphcos