One of the weaknesses of these engines is the exhaust valves can burn resulting in low compression and poor performance. Assuming that it is in good condition at the moment, I would adjust the exhaust valve clearences as soon as you get it. It's not a hard job, but requires the exhaust manifold to be removed to do it properly for access - which is one of the reasons this job didn't get done as regularly as it should in Civilian life. Remove the side plate below the exhaust manifold and you'll see the tappets there - they are as simple to adjust as any other engine then, just a flat blade screwdriver, 1/2" ring spanner and some feeler gauges.
If it hasn't been removed in a while, you may break some of the studs that connect the manifold to the exhaust - fitting new ones from your local exhaust shop will make your life easier in the future anyway. The bolts/studs on the head should be fine. Reassemble with copper coat as you'll have this off a couple of times a year if you're doing things properly.
A new side plate gasket wouldn't go astray as I bet the old one is hard. Things like this and filters can be easily obtained from your local Indy LR specialist parts supplier - not sure who is up your way, I use British Car Components in Melbourne. Maybe someone else can help out here and let you know some people up your way that are good to deal with.
I'd also remove the plugs and crank the engine until you have oil pressure before trying to start it. You may also need a squirt of oil down the dash pot on top of the carby too - unscrew the black know in the middle of the top of the carby and squirt some engine oil or trans fluid on there - a couple of squirts will do the trick. Check to make sure all the throttle linkages are free and give them a good squirt of CRC to make sure everything is operating smoothly. Check you points, dizzy cap and leads to make sure they're still serviceable. To make it easier to start, and to reduce maintenance, maybe think about putting an electronic ignition in (very cheap and easy) or even a whole new dizzy like we're doing - even that's not an expensive excersize. Brand new distributors for these are available from old blighty for about 100 quid IIRC.
Most of all, have fun with it.. Be sure to let us all know how it runs once you've been over it.
Cheers - Gav.


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. Be sure to let us all know how it runs once you've been over it.
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