Join Date: Nov 1999
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Re: HEI Settings
Yeah, I also pretty much set it up by ear. I have a timing light, but no tach, so initially I set it up at what I thought was about 800-1000 RPMs
I also have the HEI and Weber 38 on my 258, and I went with the Crane adjustable vacuum advance and played with the spring to try and find my optimum advance.
Btw, trying different springs and amount of advance is a real fun project. It doesn't cost much, and you get to make all kinds of full throttle runs!
I just followed the instructions in the Crane kit, and didn't run into any problems really. The only odd thing I encountered was a knock on the highway at about 55mph, I had to retard the whole curve a little to elimate it.
Bob in MA