Stop in for a cup of coffee

WV64Signet said

OK cool...

I've come to sorta expect being an oddity because it all sits on top of a 225 slanty... I've read a lot of the threads on here concerning carburation on these (particularly 4bbl /6 setups). There's usually a fairly vigorous discussion that occurs :rolleyes: with opposing factions. I have some folks that I lean toward their opinions primarily. I'm not racing the car...it's a cruiser, mostly below 55 MPH.

Plan "A" is to go through the rebuild, clean everything really well and replace everything back as it is currently configured to see if the rich condition continues.

What I mean by "rich" is that I can smell gas in the engine compartment after returning into the garage (there are no leaks anywhere). I have also had some occasions where short term stops take a couple of turns to get the engine to crank (as if it's maybe flooded ??)

It does have electronic ignition.

Click to expand...

If you smell fuel - as in gasoline like when you fill the tank - that's not running rich - that's fuel escaping before it goes into the cylinders.

Electronic ignition - irrelivant.
As far as opinions, I thought TMM's meme yesterday pretty much summed it up.
Of course you have no easy way to judge if anything I say is experience based on facts.
The carb doesn't know if its a 225 cid six or a 273 v-8.
All it does is respond to the velocity of the air mass through the booster.
Describing the main system here, the low speed system is a bit more sensitive.

Changing the main jets is mostly to change the high speed cruise. That's usually above 60 mph but will vary with gearing and engine.
Its also done at the drag strip for WOT in top gear but that's because its convenient. Often the carb is a calibrated that works out nearly perfectly. However it doesn't always, depending on the engine efficiency at part throttle. If one needs to adjust the fuel mixture at just WOT+heavy load, then its the power valve circuit that needs to be enriched or restricted.