Yes it does have purple on it RRR
It has 2 light brown stripes on the end. I'll have to get numbers off of the end also. Can't recall what they were.
Then my guess is the .590 solid purple shaft. That's about the only one close enough. Put it in v blocks and get a direct measurement on the lobe.
Roger that. It's going to likely be 3 weeks til I can get to it. Too much of life going on.
That's the lifter angle and bad rocker geometry
That's very true, but the "math" not including the valve train should come out right.
And maybe lousy rocker ratio. (1.5 rocker, maybe 1.45?)
When I was using the caliper on the lobe, I held it against the lobe while I slightly rotated the cam. I took the highest reading.
The cam is used. I bought it in an engine and was trying to decide to use it in my 383 build. It sounds like it's a lot bigger than I want to put in the car. I may have it reground or sell it with the lifters if I can figure what exact size it is.
Advance it about 8 degrees or so, like to 100, you'll love it.
I'll have to PM you about this..lol. thanks!
I'm building a .060 383 for my 71 Demon. Mostly a street car that I'll likely take to the track a few times. There's many variables that I haven't measured and one in particular, I won't or should say don't know how to measure. The block is decked prior to me , how much is unknown. I have KB pistons ( see picture) haven't figured compression yet, but I'm thinking close to 10 to 1 . Open chamber 906s, Edelbrock 4DB2 , Holley 750DP. 727 with shift kit, 8 3/4 with 391SG. Cam and converter and what I'm deciding. I was hoping that this might be a 557 cam,but it's definitely not looking this way.
