Holley carb tuning

[NorthWestRider]

so i have a mcss with a lq4 carbed i have a victor jr intake and a holley 3310 750 vacuum secondary im run n a th400.

Im try n actually tune this carb the right way i bought a vacuum gauge checked vacuum readings and noticed that i needed a higher number power valve since my reading was 18" so i picked up the 8.5 power valve.

So my question is am i on the right path what else do you guys recommend to check out

 

[lilbowtie]

Wideband tuning and knowledge of carb and its functions

 

[NorthWestRider]

Wideband tuning and knowledge of carb and its functions

I do plan to get a wideband i have a narrow band but never hooked it up since i heard the wide bands worked better

 

[NorthWestRider]

I kinda feel its a lil on the lean side what do you guys think

 

[lilbowtie]

With out knowing conditions of pulling the plug I'm going to say the opposite that it's fat due to the carbon ring. Wideband w/ recorder you can tune all aspects of the carb - no quessing

 

[NorthWestRider]

Ok so the issue with the ring is from previously i had installed a holley electric fuel pump and the regulator couldnt regulate it down to the right psi it was at 15psi i think it was due to the return line being to small so it run drowning the carb since then i have replaced the fuel pump and also installed a new carb but i didnt clean the plugs off it just burnt what you see in the pic

 

[pontiacgp]

If you had a flooding issue I would change the oil cause it's probably contaminated with gas

 

[NorthWestRider]

If you had a flooding issue I would change the oil cause it's probably contaminated with gas

I did

 

[NorthWestRider]

Whats a good wideband gauge that wont break the bank

 

[pontiacgp]

I have an AEM wideband that I bought used for $100. I'd buy it new if this one breaks, the number of hours it saves getting rid of guesswork is priceless