late 90's vortec 3500 ?s

[MARKDTN]

Originally Posted by Mock1

I was only stating my experience with what ive done, not what he should do. I also stated the rotating assembly speced out, so I used the stock cam, standard bore block with stock rings, and stock pistons.
I have two different distributers, factory HEI, and a MSD Pro Billet, both gears were IDENTICAL to the gear Summit sold me for a roller cam. And it wasnt for a corvette or a camaro.
Ive opened six 4x4 350s in the past year and they all had swirl port heads, maybe a fluke, dont know. I just assumed they all were. My bad.

Not trying to start a war, sorry.
-I did misunderstand about the cam. I thought I read that you were putting in a larger one. My apologies.
-It is virtually impossible to tell by sight the difference in a stock distributor gear for a roller cam and a non-roller. They do need to be compatible or you may have issues. There is a lot of reading available out there, but much of it is on aftermarket cams. As inexpensive as a distributor gear is, to me it is cheap insurance and not worth the risk. The Camaro/Corvette reference is just an easy way of finding an application for a stock distributor.
-Still not convinced about 4x2 vs: 4x4. This article from Super Chevy talks about 1/2 ton being different than some 3/4 and 1 ton castings.
http://www.superchevy.com/how-to/97458/
I was-and still am-under the impression that they are all the same combustion chamber. Also the better/worse flow myth has been debunked.
http://67-72chevytrucks.com/vboard/s...d.php?t=315686
and other places.

Again, not trying to start a war. Just wanted the OP to do more research.