Which HEI?

I have been reading the various threads about high energy ignitions and I wanted to know which system works the best on the 225. Is a higher voltage spark always better? Do all Hei's require the intake bolt mod? I'm not interested in modifing an even fir distributor to work in my motor. This probaby comes down to a matter of opinion - but your opinion matters. I'm new here and read the forum everyday. Thanks for the help.

 

Thanks for the reply Sparky. To be a little more specific, I was waffeling between the CRT Performance (Cape Conversions) and the Davis Unlimited Ignition. I have noticed that the D.U.I. has a hotter spark ( 50 kv vs. 30 kv)) than the CRT unit. I was wondering if that is equates into better (noticable) perfomance in a jeep application and therefore justify the extra $.
On the matter of converting a EF distributor to OF, I guess I'm reluctant to tear down and rebuild the distributor (and do it right). Maybe it isn't as big a deal as I think. I've seen a thread on the topic here before so I tried to search but like my garage - when I need something I can't find it.

 

Here is a link to the article you wanted about the evenfire to oddfire conversion.
http://www.cjoffroad.com/writeup.asp?WU_ID=21&noAdd=1

 

Thanks Mcruff- Reading.......

 

I read somewhere that a stock HEI with Summit's "house brand" performance coil is affordable and worth it.

 

The DUI is basically the same as the Cape Conversions unit. The only difference is the DUI uses a "hotter" coil and module. Whether it's worth the extra expense or not is up to you. On a "hotrodded" engine, it probably is. But on a basically stock engine in a Jeep, probably not.

Just my .02 cents worth.

 

Hey Mr. Greencj5. I strongly recommend the Cape (CRT). It is about as idiot-proof as they come, and did it ever improve my :v6: performance! You will be happy if you go the same way. No more points, rotor, cap and condenser replacement and adjustment every so many miles. This setup should be good for up to 50K miles. Good luck on either system.

JK

 

Thanks every one for the input. My Dauntless is a stocker so you're probably right that the slighlty stronger D.U.I spark wouldn't be felt performance wise over the CRT unit.
I read over the EF conversion article that mcruff pointed me to and after reading it I see that it's a simple & straight forward conversion that can be done on my work bench. I'm going to look around the local bone yards this w/e for an EF distributor to modify. If I don't find one quickly (time =money), then I'm going to go CRT. I'll let you know what happens.

 

Thanks for that link as well . I bought a 231 distributer off an old caddy about 2 years ago and it turned out to be even fire. I didnt know it could be converted.

 

Went to the junk yard today and found complete distributors in an '80 & '81 Buick 3.8l Will this distributor work in the 225 after conversion? If so, then I'll pull one tomorrow. If not, then what year or engine size should I be looking for?