Ignition System Performance Upgrades

Ok heres some numbers after doin alittle tuning and some driving. The addition of the msd and coil was a big improver.
345 727 d20 w/409's and 33's thermoquad
680 rpm idle/n
19.5in vac
10deg initial timing on 87 octane alkeegaz
195 deg thermostat

this freakin ol ass piece of junkiron runs like a raped ape!!!!!
Plus I got the a/c workin and its throwin snowballs out the vents.
Thanks for the great write ups and advice!!!

Time to go wheelin and pull some heeps o junk off the mountain!!! They say its a stoneage piece o shit but I always seem to have some kind of new piece of detroit or nagasaki iron on my ass attached with a damn chain lmao
 
Question: I have the Holley distributor with the gold box can I hook up an msd box too it? If not can u recommend what I can do? Its in a 76 Scout II with the 345
 
Find yourself a prestolite with the electronic ignition and get the 8207 msd coil. According to mayben this combo is the ultimate IH ignition. If you cant find one the a point type Holley with a pertronix conversion is the way to go,thus eliminating the pesky gold box and simplifying your ignition setup. Thats my opinion,
hooking up the msd to either of these types is easycheeze!!! And trust me, the set up on mine will flat light you up!!!
 
I have a mallory unilite dizzy (only direct replacement dizzy but you have to utilize your existing cam gear) I use that to trigger a mallory "6" box (digital) through a "e" coil (non canister oil filled type 60kv). I find this to be an extremely reliable setup, with multi spark capability and no issues with hot starts. I also live in houston and this summer was one level up from hell considering ambient temperature. To put this in perspective this is installed in a 79 Scout II with working a/c, auto trans, that my wife :mad2: drives daily. I maintain a steady 19.5" vaccum and no clue as to advance (it's alot but it's mayben optimized, which means I have never put a light on it to verify). Read through the posts and decide what you want. There are many options available and in most cases they are buildable insofar as you can buy one componant, save up and then get another. Just remember with any setup not utilizing a "6" box you will need a ballast resisteor or a resistance wire between your keyed b+ and the positive terminal on the coil.
 
Thanks guys for the help now I just need to find one of those dist. Got 4 spare motors all with gold box. However I called summit racing and they said the gold box is the same thing as the Ford duraspark I dont know if any of u guys can shed a little light on this subject?
 
Back
Top