flathead build

[Pete]

Originally Posted by flatjack9

When it comes to cams, everyone has their own favorite. For your car, the stock Merc cam would be the best overall choice, but you won't get the sexy idle. Personally, I use the Winfield SU1-A which is very similar to Ol Ron's fovorite - the L-100. Has a nice sounding idle and performs really well on the street.

It's a funny thing about "Winfield" SU1A's. There are many cams out there stamped SU1A that are not even close to the original grind.
Someone should write a book on cam culture and bragging rights...lol
I had an original handed to me personally by Ed himself in 1952.
Here's what the tag said and it degreed very close.

Winfield SU1A (1952)
360 lift 280 duration on the intake 28-72
360 lift 286 duration on the ex. 74-32
111 degree lobe seperation

As you can see it was a very long duration grind with the associated lumpy idle. It made fair power but was nothing outstanding.