Westfield Elevens

Aha - I meant header (exhaust manifold in UK speak), not inlet manifold. Do you modify the Maniflow Mini LCB header for your Elevens?
I made up my own throttle linkage that wraps the cable around a circular pulley bolted direct to the card spindle. Simple and effective. Then I use a bicycle rear gear inner cable for the throttle cable. Pre-stretched and very flexible, not to mention very cheap. What pre load setting do you run your LSD at?
I confess I've not weighed my car yet. 550kg is a guess. I ought to check it. Factory say 500 kg, and whilst I've ditched the passenger seat and most of the trim, I've gained an extinguisher, roll bar and oil cooler. The bar is probably only 10 to 12 kg (has to be 45 dia x 2.5 wall for regs). Extinguisher is maybe 4 kg. I'll get it weighed over winter.

I run a Sytec linkage, which attaches to the top of the carb, but is very low profile. I have another top mounted linkage as well, but I don't recall the brand. This is the first time I am using the Sytec. It has a very strong return spring, which is nice. My other top mount linkage had two springs, but required a third to get the right tension.

Webcon makes both bottom mount linkage and top mount linkages, but the top type sits very high.

Anyway, these linkages are very robust. I don't want a failure on the road, as I do tend to drive the car distances. In fact, I do rely on it from time to time, especially when I have to cover the canyon passes to make up time.

I modify the Maniflow Mini Cooper header by cutting the lower pipes, swapping them left to right, then re welding them so that they are pointed the right direction. Then, I weld the collector in place, using a second cylinder head that I have just for welding up headers.

I do the cutting through trial fitting, and the tack welding on the car, as this ensures an accurate placement of the tubes.

I believe that I have this mod covered twice, maybe three times on the Yahoo site. You can see my new header cut and welded in my "Last XI" picture album. The last header, covered in my album, shows the simple way to to the mod. When done correctly, no additional material is needed, and only three (two if you have done this before) cuts are required to get everything at the right length.

We call them exhaust manifolds here, too.

My TranX is set up 45/90. 'Works perfectly. Plenty of drive off the corners, and corner entry is very predictable. This is a standard setup from TranX. I have built three this way, and each performs perfectly. Don't forget to get race axles, or you will snap them with alarming regularity. I broke both mine. One at the splines (typical, twisted in half), and the second spun the axle out of the drive plate. This is important. BTW, they don't just break when you drive hard. They break when you are driving away from a stop light, in heavy traffic, or when leaving a restaurant. For sure on your way home from a meet.