Quote:
Originally Posted by Rich72C10
Update Pertronix 02/09/21: Canceled my Pertronix Ignitor III D7100700. Seems the Ignitor III does not work well with older OEM Tachometers - something about multiple spark. Though it appears using the Ignitor II D100700 is okay with OEM in-dash Tach. I am now looking directly at Pertronix site and have submitted a tech question.
Changed Ported to Manifold Vacuum 02/09/21: Idle went up by ~150 RPMs, so lowered it back down to ~650 RPMs. Truck is puncher off idle/full stop and preforms just as well, if not better when WOT. Matter of fact, I was able to spin the wheels at 3/4 peddle from the stop sign. No ticking / knocking that I can hear. But this was only getting her up to 50 and testing WOT between 35~40 MPH. There is only so much I'd speed around town LOL
Changed Ported to Manifold Vacuum 02/09/21 Part II: I put about 60 miles on last night. 80% 55~70 MPH and the rest town driving. I got 12 MPG
Installed PerTronix Ignitor II D100700 & Flame-Thrower II Coil 45011 02/13/21: Now getting a full 38° Max Mechanical Advance @30k, with a 12° Initial timing @650 RPMs. Also no apparent issues with my OEM Tach that I see so far. Vacuum canister on PerTronix actually works (even the TSP replacement canister I got in the mail will not hold vacuum).
The changes are: New Pertronix Flame-Thrower II, New Flame-Thrower Coil & Wires. 12° initial timing, ~900 RPM idle (Park) and ~640 RPM idle (Drive).
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I have a Mallory Electronic Conversion on mine, the Factory Tach works ,and it’s really pretty accurate