hello, i have a nova gsi with a c20xe lump and was wondering if anyone can recommend any good mods to get more bhp from it? it used to run throttle bodies before i had it and would like to get a set back on there! i see some advertised as 185's, 205's and 225's etc, can these alone actually give that much? can't really see it to be honest. also i think it has cams but can't be sure, any way of finding out?
also seen the bit about finding out if its the cossie head but not sure which side to look at, is it the dizzy side or under the cam belt cover?
also, what oil can you recommend for this engine? i've not long had it but thought i'd be aswell as knowing incase of emergancy etc.