Motoboy- How does yours one as diesel,? As far as Mr cox goes , we have a starting point, it will have to be run in on glow first anyhow so it is useful info
we will have an A/B comparison glow/vsdiesel martin

This could be the Norvel 074 replacement, The video was useful seems to throttle ok I do not know about the porting but as diesel the carb should be fine yiu want a smaller one anyhow. I did notice the purple anodizing the one shown on the TT site is plain now, guessing this is the newest version so maybe improved on the breathing

Just checked the TT factory site 4:30 PM the show about 5 pix of this engine looks goodIT IS NOT ANODIZED heence the newer version it is bronzed bushed

It will have a home the Goldberg lightnin Bug