LPG converter and extractors = no fit :(

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Car is at the exhaust place as I type. Cut a long story short, Pacemaker 4480's or 4499's wont fit due to lpg converter being in the way.

Possible options to make it work are:

1. Move the converter to sit flat on top of rocker cover.
2. Remove LPG system altogether and stick with petrol. (not gonna happen)
3. Forget about extractors or any other mods as its too hard.
4. Remove AU header tank and replace with BA header tank and associated hosing to make more room on the shocker tower for the converter to be shifted up and forward.

I know Mechan1k has done option 4 to make his extractors fit. But I dont have any pics of seeing how this mod will look.

Based on his AU build thread, he mentions the use of a lower radiator hose from the header tank to radiator and also the smaller diameter longer length hose from the top of the radiator to be a longer length than the current AU one to avoid stretching.

Anyone done this mod or has advice? Pics?

*waits for Mechan1k to log on and offer advice*

EDIT: There could be another way. I could remove the converter, turn off the gas lines, get the exhaust place to fit the extractors with the heat shield and THEN refit the converter after. A better idea???