Robert -
I am sure the real experts will chime in, but I thought I might add in a 
little bit.
I bought a pair of 1.5 HIF SUs and a stock intake manifold, both from a 
MGB. No tags, but I simply measured across the carb intake - right at 
1.5 inch. I had read (somewhere) about modifying the MGB manifold to fit 
on the A-series head, so I gave that a try. Turned out very simple to do 
and looked fairly stock (sleeper set-up). 
Before I had the chance to run this set-up (bugeye was still in early 
body work) I sold 1.5 SUs and modifed manifold on Ebay. I had 
opportunity to pick up a Maniflow & single 1.75 HIF SU, which appealed 
to me (Vizard recommendation & no balancing!). Works very well with my 1380.
Just my 2 cents
Jim Rogers
San Juan Capistrano, CA
Robert Duquette wrote:
>Hey guys and gals!
>
>Does anyone out there have 1.5 inch SUs on their 1275?
>
>If so, how do you make them fit?  My Midget has a hump grafted in by the PO to 
>allow for the extra height.  I now find myself wanting to add K&Ns ( probably 
>conical ) to the mix as the foam in my pancake type filters are 
>disintegrating.  I'm not sure yet if they'll fit.  I would love to add the 
>Maniflow intake from APT for performance, but I get stuck with the 20 degree 
>angle for the float bowls and I'm not sure that the SUs will end up in the 
>same place to fit in the hood hump.
>
>What have other people done?
>
>And, how can I tell what kind of SUs I have?  They're tagless, but they're 
>supposed to be from a UK spec MGB.
>
>Thanks!
>Robert Duquette
>1967 RHD MG Midget
>1965 RHD AH Sprite ( still in pieces )
>http://www3.sympatico.ca/robertduquette/fleet_top_view.jpg
 
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