MSD Marine distributor

Duane in Indy wrote: (Am not a fan of EI conversion modules that you drop into a points dizzy. They tend to be flakey) This should open a can of worms.

I agree completely. Conversions have been somewhat of issue for several here but a new electronic dizzy is the cats nuts.

I know that Tom has done numerous carbs, timing, tuning and messing around with anything and everything. A new dizzy certainly couldn't hurt.

Pertonix module failures in the lead by far, like a log scale.

Prestolite and Mallory hardly any.

seacamper wrote: I am getting a bit worn out tweaking the carb. I will go through it again. Sigh.

Just curious if this exercise of tweaking involves your ear and gut feel, or are you using a vacuum gauge, timing light etc.?      If you are using the appropriate tools, it seems like you can only tweak and check so many times before you're having an exercise in futility, and I totally get your frustration with that.   If you are using your subjective senses to get this right, you could be in for a long ride.   I guess what I am getting at is that the right tools make a huge difference in getting an accurate result/reading.    A timing light with dwell, offset, rpm, etc. is a great help for finding ignition problems, carb issues are harder to nail down, but a vacuum gauge makes the idle adjustment much easier.      

Do you have an idle vacuum reading?
What is your timing set to at Idle (rpm?)
What is your total timing @ 3000 RPM
How is your accelerator pump adjustment?   

Ken,
Good one!! My stomach muscles are sore from my laughing!

Duane in Indy wrote: I had a stumble when I would give it hard throttle from idle. Rebuilt carb knowing it was the accelerator pump. Hmm, same stumble. Even switched to another carb I had. Same stumble. Hmm again. Check timing and found that initial was OK but the total timing was not consistent. It would either not come in or come in late. Went to MSD dizzy and it was fixed. Had to replace gear with a new one as stated before. Three wire hook up was a breeze. One to coil, one to ground, and one to key 12 volt hot. Total advance is adjustable also. One can argue points or EI all they want but try to buy a new internal combustion engine with points. Good luck with that. Everybody changed over for a reason. (Am not a fan of EI conversion modules that you drop into a points dizzy. They tend to be flakey) This should open a can of worms.

Hey Duane, that is exactly what I am thinking.