Hey guys.
For the last few smog tests I keep scoring 700 on nox and need 400 to pass.
Last year.
I replaced the plugs. Re-adjusted my distributor back a few degrees and I passed.
This year.
Just got back
Same score as last year.
2nd attempt I will do the same thing. Replace spark plugs and retard the distributor 2-3 degrees. (Yes I know adjusting the distributor is not supposed to effect this. but every year I do this... and It has worked so far.)
Im also going to try octane booster since my strokers compression ratios are a little higher.
any other tips aside from make sure the cat is HOT?
For the last few smog tests I keep scoring 700 on nox and need 400 to pass.
Last year.
I replaced the plugs. Re-adjusted my distributor back a few degrees and I passed.
This year.
Just got back
Same score as last year.
2nd attempt I will do the same thing. Replace spark plugs and retard the distributor 2-3 degrees. (Yes I know adjusting the distributor is not supposed to effect this. but every year I do this... and It has worked so far.)
Im also going to try octane booster since my strokers compression ratios are a little higher.
any other tips aside from make sure the cat is HOT?