broken cylinder head stud

[ollie cox]

Hi all

putting the engine back together and whilst putting new cylinder head studs in.....one stud snapped flush with the block (stud between no 2 and 3 cylinder). I was trying to put car back together for Cotswold trial. Would it be a wise move to run the car minus one stud. Or is this considered to risky? 

thanks for nay help 

ollie cox