hello all , rangerover had over heating problem, so renewed the heads, gaskets etc, put back together, and would rev but on 2000 revs developed a misfire, ??? left till the following day , tried to start it up ,to have another look t it, now it won't even start , turning over but will not kick in , I don't mend it my husband and friend does, but even I am getting pig sick of it , do love this vehicle , but ebay is looking good , any ideas please x