How many lights on an A/F meter?

[Dion Ricketts]

Got my A/F meter up and running (I think).

I can shoot starter fluid into the TB and get 10 lights, but when I floor it, I have seen 10 only once. Most of the time I get 9.

This is on a '89 T2 car, only mods are a 180 thermostat and a home ported exhaust manifold. Am I running out of fuel? The T2 cars can't run that close to the edge stock, can they?

I have replaced the pump and filter, last summer. Just got done fixing a bad injector, but they are over 165,000 miles, so they might be worn out.

Guess the next step is to check the pressure at the rail.

Any input?

Thanks.

[altered7151]

You should be perfectly fine on 9 lights, if you want to be super safe you could turn up the fuel pressure to get 10, but you might lose a little power due to it being too rich. I run my daytona at 9 and have never had a problem, But if you lose that 9th light at wot, you've got about 2 seconds to get out of it before you are the proud owner of a mopar cast aluminum ashtray.