I purchased a pertronix set up for my 1969 olds 350 for reliability and performance. I went to summit and I thought i knew what I needed? Anyway, Whats better to use? the "LOBE SENSOR" style ? or the the one you need to put a pick up ring on ? Also, what coil ? the 1.5 or the 3 ohm coil ? my car has 150k miles and pretty much stock and not used for racing

 

I recently posted the same question. Here are the responses I received. After reading the info on all the choices, I decided to go with the Crane XR-i model 750-1720. I bought it on Amazon to get free shipping. It is the cheapest option - $70. Senses lobes and has a rev limiter. I did not find any negative reviews of the Crane.

https://classicoldsmobile.com/forums...tml#post423496

I am going to stay with my stock coil. It works, and there does not seem to be an advantage in changing it.

These guys have tech info on the choices.

http://www.lectriclimited.com/breakerless_se.htm

 

Stock engine, stay with stock coil. There will be zero performance increase over a stock, properly performing points distributor and coil. But it will perform like a brand new perfectly adjusted points distributor and coil for a long time with no deterioration or need for adjustmants. Claims of a hotter spark may be true, but the stock set up delivers enough spark to completely ignite the mixture on a stock engine, so a hotter spark won't gain anything. Pertronix are designed to give long term reliability equal to or a little better than stock.

 

I should point out that the PerTronix and Crane can be damaged if you leave the ignition switch ON when the engine is not running. The solid state switch inside overheats if it is constantly on versus switching on/off (when the distributor is rotating). Not sure how long this takes, but it isn't instantaneous. The overheating may also depend on whether you run the module from 8 volts (with the stock resistance wire to the coil) or run the module from 12 volts (bypass the stock resistance wire with a copper wire). 12 volts may make the module overheat faster. I have not seen a schematic for these modules, so I am making an assumption here.

The Lectric Limited says it has a feature to detect this condition and turn the solid state switch off to prevent damage.