I am having a little trouble fitting a set of Fletcher (Maniflow copies) LCB's & think it might be related to the top engine steady pushing the engine too far forward and hence the Y piece fouling on the body. I have taken a measurement from the seam on the firewall to the rear face of the head (approx 217mm) can anyone confirm the same measurement on their car.

I am only running the drivers side steady (with new rubber bushes) at this stage till I get this sorted, I need to find a central position so the LCB's fit & I still have clearance for the weber. If my measurement is quite different to others I may need to run an adjustable length steady.

Many years ago I had to relocate the gearbox mounting tab on a set of extractors because they seemed to be made for a small bore and I was fitting them to a 1275 - A 1275 is around 3/8" or 10mm taller. I can't remember if they were a Maniflow or Longman copy...

Unless you have significantly changed the length of the top engine steady it shouldn't have changed the angle of the y piece by an appreciable amount. By my rough calculations it would be about 1.5 - 2 degrees per 10mm change.

Use the adjustable top steady I made you.
There are too many variables, the stock upper bracket mounts are flimsy.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

Not unusual for LCB tails not to align correctly. In fact I would suggest it would be unuusal if you find one that did.

I use a stout shovel handle up the Y piece as a lever to adjust the bend in tubes to fit.... You will only have to move it a few mms (IME:)

It is easier if you can get the car up on a hoist ... but not absolutely necessary.

Cheers, Ian

On the way to being sorted, used the standard upper engine steady & the adjustable one Doc made on the radiator side. I have sufficent clearance for the weber & will massage the LCB's to fit as 1071 S suggests, cheers for the feedback