Bodging an Offenhauser carb manifold for port injection...
First job was to level the carb flange on the manifold. You can buy an angled spacer to sit on the top, but I wanted to get the flange as low as possible, so out with Mr Hacksaw for about an hour !
I stuck the original mounting plate back on with a
The original plate was set in place with a little Devcon aluminium epoxy to fill any rough spots. When it was set, I drilled, tapped and lobbed the original screws back in.
Trial injector holes installed with the trusty B&D. - Sorry about the quality of this picture:-(
Trial assembly shows that it might just work... The injectors sit a little more upright than with the original Rover EFI manifolds, so the spray is not straight onto the back of the valve. It is at 45° to the port though, so it shouldn't be too bad.
It does all sit nice and low though :-)
And yes, I will take the 4 injectors out of the throttle body !
More Devcon was used to build up some 'shoulders' on the port runners, which were then drilled to take the rubber injector seal.
The throttle linkage needed slimming down by cutting side of the main lever and replacing the link with a specially formed bit of split pin ;-)
Fully assembled ready for testing
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