I would to know please the best way to convert and engine to gas.
It is and in- line 4 cyl 4 stroke, firing order 1342.

I know spark plugs with 1/4 -32 threads are obtainable from RCexl as well as twin spark boxes. But how would it all fit together????
Cheers

You can use two twin cyl ignitions.

Mount the sensors 180 degrees apart

One ignition fires 1,4 and the other 3,2

Timing is 28 degrees BTDC

Carb will likely have a rich spot about 1/3 throttle.

Run 20:1 gasoline - oil ratio

Brilliant thanks..