The reason Gas-Glow works is that the methanol reacts to the platinum wire in the glow fuel.
You need right at 1/3 methanol a little less and it will quit working.

Larger quanities of oil should only be used in test batches.
The lower the compression the more nitro you need to use.
When you remove power to the glow plug and the idle drops more than a little bit
You need:

1) More Nitro

2) To raise the compression
a) new rings... If you are dealing with an older engine this may take care of a lot of problems.
b) remove material off the flange on the bottom of the cylinder.
You need about .020 clearance between the piston and the head, this is called the Squish Band.

The reason Gas-Glow works is that the methanol reacts to the platinum in the glow fuel.
You need right 1/3 methanol a little less and it will quit working.

You should not need to make carb mods. because of nitro. Maybe because of the methanol.
It takes more methanol than gas to run an engine/