I have a Mk3 astra 1400 with single point fuel injection but would like a bit more poke under the bonnet can somebody tell what carbs will fit my engine. Also i have a 1600 head that has been gas flowed and skimmed i have been told this will go straight on my 1400 is this true.
the head will fit aslong as its off a nova gte, or any of the other 1600 small block engines. you have choices really, if your gonna use the 1600 head you obviously need the correct inlet manifold for a 1600 head. the 1400 head has square ports and square inlet manifold runners so you can appreciate youll have to get what head you want before choosing the correct carb inlet manifold.
so to summarise
yes a 1600 nova gte head will fit
choose the head, then get you inlet manifold
get a nice set of used or new weber twin 40's
get to a rolling road carb specialist and have them set up.