Thanks for that. Can you remember if it is period correct to modify the manifold, i.e. adapt 6 tubes inside which would be better? If its not period correct, I'll keep it as it is at the moment (allowed fettling only). Some adaptor plates to weld on the manifold are available. Point is that we dont have a grid for real appendix cars, so better to go for a CT30/GB style. Rick Wood says he can make a Grp 1,5 with more than 300 hp. I dont need so much, reliable 250 would be fine.
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