Im going to jump in on this conversation because I think my questions will help the OP as well.
4.7 stroker, I had spoken to you before about this and you told me about the problems with the advance curve of the Chevy Hei not matching the 258 very well.
I personally love the way the HEI has improved my performance(I built my HEI from a Chevy dist and a 304 AMC gear.) Although it performs alot better Im wondering if there is still even more performance available.
I have had some trouble with water getting under the coil on the HEI and shutting me down in the middle of crossing creeks so I want to get the HEI out and replace it with a more water resistant ignition. I could seal it but I want to see if I would rather a different ignition.
You advised me at that time to get a pre smog 258 distributer.
My question is: How would you upgrade the ignition to perform best, and still acheive the water restistence that I am wanting ?
Btw, I got my 99+ intake and the aluminum carb base milled to fit each other.
I was going to just carb a 4.0, Now Ive decided to strip it and build a stroker
boardmaker,you should reconsider the HEI route, on the street I love it but it has let me down in some pretty bad spots.That coil is in a perfect spot to get splased by the right front tire and is just too low for water crossings.