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my advice. don't worry about the coils or ign amplifier unless you need them. once the car is being tuned it will be obvious if you are having any ignition problems.

as for the balancer, ideally you would have had the whole assembley balanced together (completel with balancer and flywheel). if your current engine was built and balanced with the standard balancer then just use that. but I would say keep revs under 8,000. you should be able to make plenty of power even with an 8,000 limit and your engine will live a long time.

and yes, the HKS R33 drag car used standard coils. the veilside R32 GTR drag car also used standard coils. the reason people switch to splitfires is that their standard coils eventually fail when they get old, and replacing them with new nissan ones is 3 times the price of splitfires.

oh, and personally I wouldn't put the XS mani and especially the XS gate anywhere near an engine like that. use the mani if you have to, but buy a better gate. I've seen guys with cheap gates have all sorts of problems.

Hmmm I bought the gate and the manifold.. the manifold I will improve its stength with brackets.... the gate if it makes me any problem I will through at recycle bin :O

Do you know the problems of xs gates? I read many bad comments... and many good comments.... some people say that they doesn't work and some people that they work fine.... we will see :D

buying a mani and then having to strengthen and modify it duznt tell you something??? One workshop told me the very same mani destroying a new turbo. A piece of weld broke off from inside and got sucked up through the turbo.

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