All the missing parts have finally arrived, and been delivered to WAER. Dropped box at the COVID barrier at the front door, rang Eric to let him know, then had a brief socially-distanced discussion about the next steps. Waved to @piazzanoob when he walked out into the workshop just as I was heading off.
Marina was sent off for a new exhaust, as the front pipe had rusted out and the rest of the system was heading the same way. Decided not to get too carried away, as the biggest restriction is probably the outlet from the stock cast iron manifold, even though it has a 4-2-1 layout. Did a bit of research on what MGB folk recommend, as it has a similar power range, and my cam is similar spec to a fast road MGB. Consensus was that the stock 1 3/4" was too small, and that 1 7/8" gave the best drivability and throttle response, but 2" gave a slight boost at the top end. Anything larger was found to give less power. Should give a little more power and a sportier exhaust note, as Leyland fitted the same piddly exhaust to the TC as they did to the single carb 1500 and 1750.
Might have to save up some pennies to put it on the rolling road and see how it compares to the stock 90bhp at the flywheel.