Hi Tom,
Things from years ago keep popping up in memory. My recollection on CV
vs. ZH needles is that one is richer at the low end and the other is richer
at the high end. I can't remember which is which, but for a bone stock TR6
or for my slightly modified TR6 that still has a stock cam, either works
pretty darn well.
In both cases I mentioned, HS6 carbs with adjustable jets were used, which
I'm thinking may make up for some of the differences in needles. In my
case, minor engine mods and ZH needles has yielded gas mileage in the low to
mid 20's, similar to what I was getting with all else equal except running
stock carbs.
I can't really say that I'm getting more power or better acceleration from
the SU's, that would be seat of the pants judgement influenced no doubt by
the happy noise of the header and Dynomax mufflers, but I am for sure
having fun with the combination of all factors, and no issues other than those
crappy rotors that have been superceded by the red ones.
Jim
Hi Tom,
You've jogged my memory. I was wrong about needles from the AH 3000
MkIII. Joe Curto was using the CV needles from earlier AH 6 cylinder
models.
This was over 10 years ago, since then he may have found something he
likes
better.
Hope I didn't lead anyone down the proverbial garden path.
Jim
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