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Austin Healey parts spares and accessories are available for Austin Healey 100, 100-6, 3000, Sprite, Bugeye (Frogeye) and other Healey models from British car spares company LBCarCo.

Austin-Healey Sprite - Uncontrolled Idle with HS2s

I finally got the hankering to do the usual upgrade to my '58- changing the H1 carbs to HS2s. I have the set of HS2s that were on my '62, so it seemed like a no brainer to do. I cleaned and regasketed the HS2s prior to installation, after they were in, I couldn't get the idle below 2K revs!- Took them back off, checked everything, replaced the angle locating gaskets on the float bowls (they weren't vertical)- found that the manifold rocked if not put at the right elevation, got it correctly situated, now it won't idle below 4K! WTF!

I wound up putting the H1s back on so that I can drive it. Any help would be appreciated.
TIA, Mark
MMH Haynes

This thread was discussed on 31/08/2009

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