alecz

Got a work in progress 78 ZH Fairlane, rebuilt 351C, 10.5 compression, 650 dp holley, roller rockers, AFD heads, custom cam, 2.5" duel exh, 3.25 diff, FMX stg 1 S/kit, & Bosch electronic ignition, etc etc.
It goes really well, but i want more ( who does'nt)
Is it worthwhile replacing existing basic Bosch with an MSD system (or other)?
What are the pros/cons?
Tks in advance
Alecz

Nod

I wouldnt bother replacing the Bosch unless its rooted but I'd definately buy a MSD6AL box. You may notice an improvement in starting and performance, or you may not notice much change at all, but the rev limiter has saved my engine from over revving on enough occasions for me to reckon it was $500 well spent.

STROKEXD

Can guarantee you will get a noticable improvement fitting the 6AL box, the more cammy the motor the better the gains, as they give so much extra spark they improve a lopey idle and add torque because of more complete combustion.

You could keep the current dizzy, but definately upgrade your coil. The MSD Blaster II coils are OK, but MSD's new E type or H type coils are much better again.

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TruBlu351

Yep, concur. Keep stock electronic dizzy, get new MSD ingnition box and coil.

It's like having an arc welder at each spark plug

Better performance, starting is an absolute treat and also aids in stopping plug fouling.

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XE Falcon
393 Tremec TKO 9"

xdclevo

I went from the std electronic and added the MSD 6AL, and didn't notice any difference except the whirring noise the box makes(i have inside car). I'm sure there is improvements somewhere, but i couldn't pick it with performance or at idle. I mainly got it because one nite i overrevved my motor to 7500rpm, and it was a good reason to update ignition and add a rev limiter at the same time.

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10.70 @ 125.00 on the black fun top
408 Cube Cleveland.

Black XW

Although the 6 & 7 al,s are good i have just brought the msd digital 6.They do not require chips as they have built in dials for adjusting rev limit & 2step.But i think the best thing about them is they have an automatic adjustable retard on start up.With the HVC coil cost a bit over 700.00.

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we cam , we ford , we conquer.

alecz

Oh Yea, I like the sound of "arc welder spark", and adjustable retard on start up, 700 bucks not over the top either. Thanks again guys, I'll go the msd digital.

buzz

I'm with XDCLEVO here. I added a MSD6AL and noticed stuff all difference. but an autometer rev-limiter alone was much the same price, so your basically looking at 500 squid for a rev limiter.

1XYGTHO

I have an MSD 6AL and MSD Billet dizzy. Has been a very good investment. Have had to replace the plugs less, car runs smoother to 7000RPM. Buy one, you'll not regret it....

Troy

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'Injection is nice, but I'd rather be BLOWN'

alecz

I'm having probs locating a MSD digital system, could you tell me where you purchased yours, or can anyone else recommend a supplier.