the basics on my motor.
i have a stroker 572ci hemi. first design stage 5 heads, indy single plane intake, holley 4150 style ultra HP 1000+ cfm carb with progressive linkage with out any vacuum ports on the base plate, large hydraulic cam with rhodes lifters, MSD 6AL ignition box, MSD blaster 2 anti-vibration coil. LOW compression motor so it runs on 87 octane reformulated gas.
my friend just installed a chassis dyno so we strapped it down and made about 15 dyno pulls, both full throttle and simulated driving, the AF ratio is perfect along the entire rpm curve. made corrected SAE 466hp @ 5500 rpm at the rear wheels with 535 ft lbs of torque, i have to check the dyno sheets for exact specs am going by memory now. we re-jetted the carb, changed air bleeds, adjusted the accelerator pump cams and squirters. adjusted the initial timing and the mechanical advance curves.
the car runs awsome now. MUCH more bottom end power and it revs much faster now.


my problem to get better idle quality we changed the inital to 12* advance at start up and now the car cranks over slower than i would like it to. i can retard the timing to 6* and it cranks perfect so the starter is fine.

would you just install a adjustable timing control or maybe install a MSD Digital 6-Plus box with built in start up retard?

i have the 6AL box hidden under the battery tray to keep it out of sight. i have all of the stock ignition box installed for the stock look and would like to keep it that way.

how big is the MSD timing control box? there are no specs on their website. do i have to install it under hood or can i install it under dash?

if i use the MSD digital 6-plus box i could sell my 6AL box to recover some cash.

WHAT WOULD YOU DO AND WHY WOULD YOU DO IT THAT WAY?

my problem to get better idle quality we changed the inital to 12* advance at start up and now the car cranks over slower than i would like it to. i can retard the timing to 6* and it cranks perfect

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The Hemi is going to need all the advance you can give it,..........12 BTDC is fine,......what starter are you using?......if it's the old "wha, wha, wha, wha,...wha" factory starter.....upgrade to a newer mini hy-tork unit

sounds like the starter. i can run 20 degrees or more initial, and the mini starter i have cranks it right over.

i think i'm set at about 18 right now, with 32 total.

Like Don Garlits always said, those Hemi's love
timing. Just keep tossing more at it.

I agree on tossing the factory starter in the trash.
Yes, get a hi tork mini starter.

The Digital 6 from MSD is a very good box.
A used 6-AL might not bring much $$$.
If I was going to upgrade, I would do the
Digital 7 plus, that you can tune with a lap top.

The MSD adjustable timing module that is available for the 6al works great! My msd box was mounted on an aluminum plate inside my glovebox(liner removed) I installed the timing module beside it and it has the reostat for changing the timing + or - 15*. The adjuster can be mounted with doublesided tape(supplied) anywhere inside it will reach. It will do what you want and save you a bunch of money. The diminsions of the box itself IIRC is 3"x 3", not very big.

i am using a NEW mini starter from mopar, the big ones won't clear the headers, i purchased last fall, worked great last year with 6* initial last year. i don't even have 600 miles on this starter. i have good voltage at the battery, i am using one of the better, square back, alternators. i electronically tested the battery and it checked out ok. load tested the alternator and that passed inspection. cleaned all of the connections.

can i mount the retard box under the dash when i have the 6AL under the battery? or do i have to mount it near the box?
a new retard box is about $150 from jegs, the 6 digital is only about $100 more and MSD's website says there is a retard function built in.
i really don't want to go with a 7 because the box is so big and would have trouble hiding it, and i really don't want to rewire another box in.
then again if i go with the 6 digital i would have to rewire that.
i was thinking my best bet would be to use the retard box, if it's only 3"X 3" i could hide it under the battery tray with the 6AL box. and buy another starter just to be safe.
my buddy with the chassis dyno says those stroker motors, 4.5" stroke or more, don't like the stock mini starters you have to use the heavy duty ones like from RobbMc. i really don't want to spend $300 for a starter just to sell the car.