Methanol jetting

Sterling said

That might be ok, depending on the carburetor. A lot of the ones I worked on had holes drilled in the metering block just above the jets, so the jet sizes were smaller. Make sure you have enough fuel volume and pressure, usually use twice as much as race fuel. If you can’t build any engine temp, jetting might be too much. All the drag racing carburetors don’t run a power valve that I have worked on.

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Thanks Mate. The hole in the metering block is what was done years ago so you can reuse your old Holley jets without going to buy a whole bunch of bigger methanol jets. When I ran injection on meth I used to restrict fuel at idle to build heat, so with a carb I don't see why I can't intoduce air into the manifold so artificially leaning it out to build heat. Funny with Meth you try and keep the engine warm between rounds - the opposite to a petrol engine you try to cool down.