Cheers mate,the gauge isn't eractic at all !! it just seems to have dropped,it used to tickover at -15/20 and now it's down to 10 if i drop the revs below 1250 rpm it just cuts out so i have them adjusted to 1500 just now,See when you say block of the breather to the air boc,is this the part from the left handside of the rocker cover ??
Another thing regarding the intercooler,it's in really poor condition and i was thinking along they lines also,is there away i could possible tell if i have blewn the intercooler ??
Thanks again Bill