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A while ago I bought on ebay a set of RLE castings with some photo copied drawings, and with the cold weather have finally got round to making a start on them. Straight away I realised the drawings were so illegible I couldn't read a lot of the dimensions, but JasonB came to the rescue with a better set - and a link to this forum. Thanks Jason!One or two things are puzzling me though. 1. The drawings suggest adding 1/4" to some dimension if higher compression is required. Which dimension is this? I guess its the con rod, but as the drawings are in sections it isn't easy to tell.2. My base casting hasn't got any provision for holding-down bolts where it sits on the baseboard or whatever. Is this usual?3. The literature mentions making the rings 5 thou oversize before machining the piston. I'm not that familiar with ring practice as I bought ready-made ones for my Red Wings, but doesn't that mean they will be distorted out of round when gapped correctly and inserted in a 5 thou smaller bore? Or am I thinking too much?4. The amount of overhang on the exhaust valve push rod is horrible - has anyone else reduced it somehow? I'm thinking of using a flat bar as in the Red Wings, and adding some cast support nearer the cam.5. Has anyone used oilite bushes for the mains? I'm thinking I can just about work 9/16" OD ones if I make my own bearing caps and squeeze the timing gear back towards the bore a bit. Is that daft?Thanks for reading this! Any input gratefully accepted. John.