DO UFOs WORK

[MAD670]

NEED YOUR INPUT ON UFOs AND IF THEY WORK IN ROUND SLIDE CARBS I HAVE A 98 FORMULA Z 670 LET ME KNOW

[97xcr440]

Yes they will work in your round slides but they do require quite a bit of tuning in the begining with alot of plug chops.

[2doo]

this also requires you to do some filing on your slides and this is non-reversible so you will have to get new slides if you don't like your results and want to go back stock. you need to probably go with the smallest pilot jets you can get and still be too rich at idle. I used them and was not happy with the results, maybe your luck will be better. Just remember, its always better to start rich and slowly lean it down till you get what you want. Start out lean and you will burn it down before you know what happened!!

[MAD670]

Burn downs been there done that many times it runs well now just trying to get a little more out of it i dont think ill be getting them if i have to file my slides thanks guys

[2doo]

The only filing that needs to be done is to make a smooth transition between the slide and the insert, in other words, not much. However, this will alter your slides a bit.