I have removed the engine to do some more work on it. Previously I turned the stub on the harmonic balancer down 6mm to retain pulley alignment when I fitted the crank trigger wheel. By doing this I also take a small amount on material off the counterweight to clear the timing cover.
I had decided to strip the engine down and have the rotating assembly re-balanced.
Also painted the block blue (chevy orange didn't match the colour of the car) and had Hogan's racing manifolds custom make a new EFI manifold for me.
The manifold is 8" from the chinawall to its highest point. This is about 1" less then the previous set-up I had. This will give me plenty of hood clearance even with the throttle body fitted.