1974 Valiant Scamp, timing retarding when revved

AJ, it runs great after setting the transfer slot as you said. I get a fairly smooth idle at 850rpm just adjusting the idle mixture I can put it in drive and it idles at about 750rpm with 12" of vacuum, on 10* of spark advance.

I think it could use more fine tuning but the baseline is set, I need to check vacuum and mechanical spark as it was a California car with it starting at 5* ATDC there is no telling how they have the spark curve set up.

Thanks again for the help with this, without the transfer slot spec I'd have been scratching my head for days!