Cam recommendation for 401 in '74 Jav/AMX

[nick.alfano@xxxxxxxxxx]

Marty,

A 600 cfm carb is barely big enough for a stock 401 let alone one bored 30 
over with Indy heads, an Air Gap intake, 2500 stall and a cam.  The cam 
sounds like a good choice for a mild -medium street build but a little 
short on duration for the stall converter you have.  It should work fine 
but you may benefit from just a little more duration.  The balancing 
factor may be that you have such a low gear ratio that the stall might 
equal out the difference and help you get out of the hole.  Where are they 
saying the peak torque is on that cam?  Either way, I think you will like 
a 750 on that engine much better especially with the increased intake flow 
of the Indy heads.  Like most of us who have been there many times before 
have posted in the past, AMC V-8 engines love more fuel than typically 
required for a Ford or Chevy of the same size.

 Nick Alfano



Message-ID: <20041008235100.96674.qmail@xxxxxxxxxxxxxxxxxxxxxxx>
Date: Fri, 8 Oct 2004 16:51:00 -0700 (PDT)
From: Marty Bricker <mbrickerusn@xxxxxxxxx>
Subject: Cam recommendation for 401 in  '74 Jav/AMX
To: AMC List <mail@xxxxxxxxxxxx>

Sent the following request to Reed Cams

I am rebuilding a 401 to put in my 74 Javelin/AMX. 
Here are the specifics:
> > -401 core
> > -.030 forged pistons
> > -Indy cylinder heads
> > -1.6 roller rockers
> > -Moly rings
> > -Edelbrock RPM Air Gap intake
> > -Edelbrock elec choke 600 cfm carb
> > -MSD Ready to Run Distributor w 8207 coil
> > -2500 stall converter on 998 auto trans
> > -double roller timing chain
> > -manual brakes (disk front, drum rear)
> > -power steering
> > -no a/c
> > -I want this to be a strong street performer that
> > can also be driven to cruise nights, around town
and to out of state car shows. 
> > I'm looking for your cam and lifter
recommendations
> > for my vehicle and application.  Thanks for your
help.

1st reply from Reed:  What is your desired power
range?

My reply:

The Air Gap manifold range is 1500-6500 but I don't
> think I'll ever be that high(I think the 600cfm carb
> will limit the top end as well).  I'm most concerned
> with mid to low range power (1500-5000?).  This is a
> 3spd Auto (998 trans) with non-lockup 2.87 rear
> gears.
>  A lopey idle is ok but I don't want to have it
> stall
> out at stop lights or have to chirp the tires
> everytime I pull away from a stop sign or bog down
> if
> pulling away quickly from a stop.  I didn't include
> this last time but the car is about 3100 lbs.  It
> will
> also be using stock exhaust manifolds and 2" exhaust
> thruough turbo mufflers.  It also has functional
cowl induction.  I hope this makes sense. 

Reed recommendation:
I suggest a TM272/276h10a2 grind. It's specs are
272/276 advertised duration, 218/223 duration at .050
and .491/.502 lift. 110 lobe sep and install it on 106
intake centerline. Cost is $123.40.

Comments?