burnt out ignition somewhere ?

Having spent the winter taking the head off my Mk 2a to repair the exhaust threads I reached the stage of re build and refitting the coils etc.  Two sparx  black boxes later I,ve realise I had the connections muddled, an easy mistake, any idiot can do it. I,m pretty sure they are now as per manual  , but still no spark . My question is this, is there any body  out there  able and willing  to come and look at it. My prowess stops at circut tester level. No spark no clue!