Hi Guys
Those of you who have build a A12 suckthrough turbo engine. Can you please give me details about the following:

1. What did you do to drop the compresion.
Preferably the cheapest option. I don't
want to use a different crank or cylinder
head. Maybe a decomp plate?
2. What must be done to the timing on the
distributor and the vacuum advance.
3. I have a spare set of A12GX flaptop hitachi SU's. One set the one is a little worn on the inside next to the bush and butterfly. So the butterfly does'nt seal properly. The other one is still usable. Can I use this SU or must it be the larger Jaguar SU that must be used.
Any other info appreciated.
Those of you who did this. What was or is your engine specs and what power did you get.

Do you think a 4 speed will hold up if I do not do clutch dumps at high revs, but do boot it when in gear through all the gears.

Don't worry, I am not going to do this to my GX but plan on getting another sedan.