Update on the gear situation.
Going with the 20 spline box because it is $700 for the 1/2 of the 2nd gear set that i need. Using a S1 T18 front section of the tail shaft will marry up to the AE86 tail section. The uni is slightly smaller but I think it will be ok.
Waiting on the MRP 4.89 diff gears to land before fitting the new drive line. It will be in for Noosa Hill Climb but for now I'm just going to run my old std box and 4.3 diff.
The fuel system.
There was superfine red crap, talcum powder like in texture in the sump and carbs. I pulled the fuel tank out today and! HOLY COW. Silt to the max. There was about 12l of fuel in there which I used to flush it a couple of times. I've since removed it and given it a good pressure clean and replaced some old hoses.
All nice and clean ready for some fresh BP 100 race fuel.
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