Hey Chris,
Welcome to the club and well done on the purchases. These were the cars advertised on car sales?
2 Four Doors and a Ute for $1200? Well done a good buy indeed.
The four door is what I first had when I was at uni in South Australia. Now I've got a 2 Door sedan- yes shipped all the way up here. The 1000 community is starting to get pretty big now!
An A12GX setup would keep you away from having to make some big changes to the diff (torque is still relatively mild).
You can also fit the flat top pistons (form the A10) into the A12 using an A14 crankshaft (to compensate for the longer stroke/throw).
- Get an oval port head(revhead has one for sale).
- Make some extractors.
- Electronic ignition (
E15 Pulsar Distributor).
- Get the cam ground to a suitable profile (
My Preference).
- Fit a 32/36 carby and start from there.
Thats about AU$350-400 worth to be on the safe side. The head doesn't really have to be oval port just yet so you can leave that out.
In the meantime build another engine up with sideraughts or forced induction.
I'm putting an A14 in, getting a H150 diff to accomodate the extra torque.
Cheers,
Chris