Hellp me tune my carburetor...

rmcelwee · 05-11-2014, 10:10 AM

I'm new here (again). I bought a Miata with an LS1 in it a few years ago but sold it before I really got to mess with it. I posted a couple of times but things didn't work out with the build (rebuild) so I dropped out. Well, I did it again. I bought a Miata with an automatic and 383 stroker in it out of Iowa. The car has a Holley 670 in it. I don't know who did the setup on this thing but it runs horrible. It idles ok but just doesn't have the smooth power that it should have. There is a dead spot and just bad performance in general. The only work I have done on it so far is to fix the bowl levels. The primary bowl was way too full and the secondary bowl adjustment was bottomed out with hardly any fuel in there.

So, I'm wondering if there are any guys in here who are good with carb setups that might be willing to give me some tips on where to start?

05-11-2014, 10:10 AM	#1
rmcelwee Member Join Date: Feb 2011 Posts: 10	Hellp me tune my carburetor... I'm new here (again). I bought a Miata with an LS1 in it a few years ago but sold it before I really got to mess with it. I posted a couple of times but things didn't work out with the build (rebuild) so I dropped out. Well, I did it again. I bought a Miata with an automatic and 383 stroker in it out of Iowa. The car has a Holley 670 in it. I don't know who did the setup on this thing but it runs horrible. It idles ok but just doesn't have the smooth power that it should have. There is a dead spot and just bad performance in general. The only work I have done on it so far is to fix the bowl levels. The primary bowl was way too full and the secondary bowl adjustment was bottomed out with hardly any fuel in there. So, I'm wondering if there are any guys in here who are good with carb setups that might be willing to give me some tips on where to start?