Got a 1970 OS max 80 , the rear induction gets the tank on the thrustline , so itll fit .
Like the look of the RE HP / Webra 60 schnurle , but theres a limit to HOW MANY engines
' you need '
.
Think a straight intake tube on some of these 4 strokes ( tuned induction ) would get the induction tuned .
Generally , if you can see down the port into the cylinder , the flows not to impeded . On Motoscickles ,
the ' tuned length ' bit can be worth a bit of HP or TOURQUE , like the long Chrysler dual cross plane 4bbl set up .
Theres a link there to ' the build ' . Must get the braces & Bellcrank in . press on Rewardless .