I've also posted this in the 1st Gen. Tech Section: I'm looking at my 97' Mazdaspeed Competition Parts Catalog and Noticed that Mazdaspeed use to sell/make race/upgraded Grose-Jets(Needle and Seats) for the 12A Nikki.
Page IN-3 (Intake and Exhaust Section)
Part # 0000-06-7311
Fits 72-85, 'Replaces stock carburetor needle and seat. Provides consistent fuel metering and fuel flow under all conditions, even with high "G" cornering loads.'

Does anyone have any of these? Or know if they still sell them?
Thanks,
-Crispin

 

I have them in stock.

 

Sent you a PM.

 

Sent you a PM also. I have been looking for a set of these as well. If you have another set I'd like to buy them.

Thanks,
Jamie

 

Oops, double post.

 

me too..pm sent

 

I am pretty sure I may have a set of these still in my collection , I will check tommorrow and post if I do for anyone who may need a pair. Thanx

 

let me no....i am interest

 

I found a pair in my parts stash ; I bought them decades ago from Rotary Engineering ! PM me with your e-mail if interested. $25 OBO including shipping to the US ? Thanx

 

i want them.......pm sent

 

I've sent a PM rx71king....

 

I received mine today. Very very nice.

Thanks Powerhouse.

 

how much did you pay for them..?

 

Your welcome nice doing business with you.

 

Anyone else know where to get these? Powerhouse has sold out.

 

I would also like a set of these. How much are they going for?

 

Anyone have a new source?