https://www.blocklayer.com/degree-wheel.aspx

Here. Print out one of these babies on card stock paper. Works for me in a pinch. Lots of options, too.

I was thinking that you could add 20 degrees advance across the board to your timing tables to confirm your suspicions about the distributor without taking stuff apart. Turn the key and see if it...

Don't forget to make sure it has more than just one keyhole in it. The new camaros are so wrong when it comes to unlocking it with a dead battery in the back. I'd just have to drill holes in it to...

Timing lights are still not obsolete, folks. It still urks me that they are fading away from the public's reach, due to the illusion that computers don't make timing errors. One of these days I am...

A quick way to test for equal injector flow w/o removing it involves a fixed injector pulsewidth with about 10 cycles or so, and a fuel pressure gauge. Pressurize the fuel system and turn off the...

I just remembered something from my obd-I days that really screwed with me at the time. Narrowband O2 sensors sometimes go nuts and put out NEGATIVE voltage on the output wire. This really made...

Ack. It was a 1949 truck with a 383 lt-1 in it.
Here's the original bin and the VE modified @idle speeds.
The pcm/engine combo is from a 1996 firebird.

Wish I could take that trip, spfautsch, but I will be installing a fuel pump in the wagon and getting it ready to pass inspection. Just got the exhaust done, now this. It's doing the vapor lock...

Well, I was going to say, "unplug the MAF, tune for speed density", but you beat me to it.

All this talk about humidity being a major factor reminds me of when I determined the exact nature of...