Keep Dellorto DRLA 45s and Bosch 009? Options

[98101]

I suddenly find myself owning 1970 4-cylinder 2.4 with Web hot street Cam idles nicely and pulls hard at WOT. Part throttle response is not great, often with carbs coughing and even backfiring on trailing throttle. My use is mostly street, so I'd like to get this part throttle stuff sorted.

Here's pictures of the stuff that's in there now. I guess that's the infamous Bosch 009 with no vacuum advance and a PerTronix 1847A. The carbs are Dellorto DRLA 45s with short velocity stacks and these tall foam things that don't seal against the air cleaner housings. I'm willing to learn about the carbs but I don't have much confidence in the 009 for running nicely on the street. Please correct me if I'm wrong about any of this stuff.

Also from other threads I gather that switching to EFI such as MicroSquirt would cost $5K or so ... though I'm not ruling this out completely. Correct me if I'm wrong about that.






Is this kind of linkage OK?


Here's the idle you may have seen in another post:

https://www.youtube.com/watch?v=-AC53RRrXOU


Any help you can provide is appreciated!

--Michael in Seattle

[rhodyguy]

Invest in the CB dell manual and a synchronizing tool. Pelican (among others) has them, #PEL-TOL-STESK. Or be prepared spend $100+an hour to have someone sort the carbs out. You could buy a 123 dist for a carbed engine and have money leftover just to discover what might be amiss if subbing out the work. While the 009 will fuction, your ingnition will not be optimized.

Do those tall air filters interfere with the rain tray?

PS replace the fuel line clamps with the shouldered variety as opposed to the slotted type.

[98101]

You could buy a 123 dist for a carbed engine and have money leftover just to discover what might be amiss if subbing out the work. While the 009 will fuction, your ingnition will not be optimized.

I read the whole thread about the 123 Distributor Group Buy at http://www.914world.com/bbs2/index.php?showtopic=318153. I enjoyed reading how everyone was super excited at first, then ran into some problems, and then mostly worked them out. Well, except the guy who seized his engine.

Anyway, the 123 sounds like the most fun to me at the moment, and still way more affordable than aftermarket EFI. The Bluetooth version with the 12V switch between two modes is especially interesting. I could see having a conservative “try not to cough” mode while the car is warming up, and an aggressive mode.

I could not tell from the thread whether the 123 would require relocating the oil pressure sensor or bending any tin. It sounded like no.