Marcus,
I recurved the dizzie on the Spit 1500 when I put the Webers on it. You
do need to retain some mechanical advance and play with the springs and
weights to get it right. However, you can disconnect the vacuum with no
problem. I would NOT weld it all up or you will be a slug on pull away
and ping like crazy !
I took a different route on the Healey and put in a Mallory dual-point
distributor and it is great . Very well made, popular in racing circles
and fully mechanical. Moss has them, as does VB, but $$$$ !
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Ian Macky made a point on silicone, to which I would would add:
I have had no trouble with the cars on silicone , but I replaced
everything that was rubber and had been sitting in the old fluid.The one
thing I did not replace was the hose to the slave cylinder on the TR3.
Guess what ? It wenrt all strange and spongy and bits atrartee coming
off. Was it age or the new fluid mixes with the old stuff which had
soaked into the rubber ? Don't know, but I would say, go for silicone,
but do a thorough change over .
As for Ian hating a bouncy tail and a tight front I agree. I prefer a
bouncy front and a tight rear end ! ;-) What do you think Roland, is
this like that "fanny" thread a while back?
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The Spitfire engine question : If it has a decal on the hood saying 1500
it is 1975 or newwer. THe 74 had a roundel like decal on it. There is
very little sense in trying to swap back on forth on the pre 74 units. It
gets really confusing.
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