Hi All
The gist of this question is, that my mkll gt6 has a bit of a 'Frankenstien' under the bonnet. To cut a long story short, when I bought it the previous owner told me that the block was not the original but had possibly come from a Vitesse, though he wasn't sure as it came with the car, from the previous owner to him. There is no engine no. to go by, so I cannot confirm the model. The car came with all receipts to show that it has been brought up to gt6 spec and I have no reason to doubt this after three years of ownership.
The engine does have domed pistons( which he informed me of and I have since checked to be correct) but when I checked the timing it was quite a bit out (can't remember how much but retarded). I have since fitted electronic ignition to it's Lucas d22 dizzy, which I know is also not the original Delco but he felt was a better dizzy.
My question is, what degree of timing should I be applying? I believe the mkll was set at 10 deg btdc, but with the domed pistons should I use this or the mklll setting, which I think is about 12 deg, or have I got my facts wrong altogether?
Thanks in advance Jeff