Hi,

I don't really know if I do have a problem. Just that the HIFs came along at the right price, and the advice I got was that they were an improvement and that leaning was a known (albeit perhaps insignificant) problem with HSs.

I'm feeding from a common block with individual 1/4" fuel lines to each carb. It's driven by a Carter Green pump (I think they are rated 140gph) down a 3/8" pipe to the common block, so fuel delivery shouldn't be an issue. Unless, as you say, the tank is a bit empty. It is a problem with Toranas that they have a fairly flat, shallow tank so keeping it topped up is a really good idea.

I pulled a needle from one of the HIFs today. It is an SM. I need to do a bit of research to see if I should start with those or try another needle.

A week or so ago, I removed a tank from a 1974 144 parts car after a bit of measuring. It fits in the Torana boot just about over the axle hump. Filling might be a bit of an issue, but not insoluble. This sounds a worthwhile mod when I get everything else fixed up.

Regards

John
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JohnH, Sydney, Australia