Though a timing belt and chain perform the same job, there are some differences in their components, which make it necessary to know which one your engine has.

Ignition Delay - • Anti-Lag System By Ignition Delay - N... Anti Lag System: Bypass Valve - • How Anti-Lag Systems Work - No ...

Switching from butane to a liquid fuel ... the valves aren’t adjusted properly, or any number of other problems. In this case it seems to have been caused by improper engine timing.

Fuel is injected into the ... the valves are opened to prevent a delayed ignition, which can blow up the engine, and getting the valve sequence and timing correct is critical.