Threw an old astra GTE i had laying about back together the other day with a head off my nova valver im not using any more.
Generally it goes pretty well but there is an intermittant misfire under load, and its rough low down.
Im thinking the low down running is due to a cone filter, which im planning on binning when i find an air box for it, but what do people reckon the misfire on the way up the range is likely to be?
Im thinking HT leads or something else ignition related and that its when compression chamber pressures are high at full throttle its stopping the spark?
Any thing else people have commonly come across causing this?
I dont think its anything mechanical as when its not doing it she flies along very well so im sure i have plenty of CR etc.