I dropped the engine and trans off for rebuild. 351W and an FMX, both 1973.
I've instructed the builder to target a static 10:1 with his piston selection, heads are 60.4cc comb chambers. He's looking for direction on the cam, I've been looking at comp cams XE262H.
That's probably as wild as I care to go, We will be running a dual plane alum intake and prob 600-650 vac secondary 4 barrel, headers too, probably something mid length.
I like the lunati voodoo cams but I cover so many bases, being the body man, mechanic, painter etc. I want to buy a complete set including valve springs and I don't know that lunati offers it.
I'd like to run stock converter, this is a power assist brake car, weight is around 3000lbs, gears I believe are 3.23 (or possibly 3.5). 10:1 compression.
The stock cam for 1969 351M in Mach1 would have been ford #C9OZ-6250-A
Lunati sells kits I'm pretty sure.
The Comp cam you linked is actually one size bigger than I'd be inclined to go. How about this:
In my estimation you're over cooking it with the 10:1 compression idea, particularly with iron heads. The kind of cam that will be compatible with modest gears, a stock converter, and nice driving characteristics will produce a lot of cylinder pressure and even pump premium is going to have trouble.
Well lets talk about that compression then. That's a static ratio that I've pulled out of the air based of the original. But, things were different back then, things like fuel for one.
Should I look for pistons with a little more relief volume? Maybe get down in the 9.5 range?
I mean seriously, I'd like to hit 300 hp with a fairly smooth idle, good vacuum, stock converter etc. And I'd liek to do so with all things considered, such as today's fuel and modern cam grinds.
![[Linked Image]](http://www.mustangbarn.com/Techinfoimages/camsb.jpg)
