Quote:
Originally Posted by 61ragtop
I was just thinking it may help it run cleaner at idle and more efficient in general with the multiple spark. Also the claimed better throttle response and starting can't hurt either.
The HEI I have is a proform I believe with a petronix coil and generic aftermarket performance module from the local speed shop.
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Here's what I would advise BEFORE you dump $600 into an MSD box and new distributor and coil....
Take the car to a REALLY GOOD dyno... that does carb work. Your description of "idling cleaner" sounds to me as though the carb is not quite right... and needs more than just the idle air screws adjusted.... and that you might also need some timing adjustments to the distributor/set up you already have. Personally - I run as much initial timing as I can.... like 18*.... and use an 18* stop bushing for a total of 36*. My cars start instantly - and idle beautifully... I don't even run an idle air controller on my 8 stack injected Nomad. There's no need for one.
I think you're trying to overcome another symptom with "spark" -- and frankly -- in my book -- once the fuel is lit -- it's lit -- one spark or 70.... Yes I run MSD boxes on my stuff and normal MSD distributors... so I'm not against this combo obviously. I'm just thinking that from your description there might be a better solution and the overall outcome might be a far better performance "in general" with the right timing and curve and carb adjustments all through the entire start to WOT.
