I haven’t done this, although I have the MSD HEI modules in my 305
Camaro powered S10, and my 350 Chevy powered Jag. They work just fine, no
regrets. Available from Summit, Jegs, P.A.W., etc. P.A.W. is a couple of
dollars more than the other two, but is located in the SFV, so no big deal.
I call them, they have it, I drive over, I buy it, I go home. If you
haven’t been in their warehouse location (on Nordhoff by De Soto), you will
be surprised and blown away. NAYYY.
I purchased a 6A to put in another car, but I haven’t gotten around to
it. I guess I could put the 6A in any of my three cars. How will it work?
I’ve heard good and bad (depends who you talk to), but the general gist of
it, if I understand correctly, is that the old ones added performance, but
could be unreliable. Supposedly the reliability problem has long since been
The 6A is smog legal in all 50 states. If it does interfere with the
tach, a special wire with connector is included that MSD says will allow it
to work properly.
Al L.----- Original Message -----
From: “RickSmol” firstname.lastname@example.org
Sent: Saturday, March 06, 2004 5:11 PM
Subject: [Lumps!] Msd ignition control
I have been thinking of installing a MSD 6A unit in my 5 liter TPI
engine. I am wondering if anybody has done this in this forum.
A few questions come to mind…
1-Does it make a difference big enough to justify the cost
2-does it interfere with the existing tachometer circuitry
3-is there any smog related drawback to this addition or is it
legal (mainly in the People’s Republic of California)
Appreciate any answers or comments.
'85 XJ6/305 TPI/ 700R4
Los Angeles/California, United States
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