sarocu

FWIW while driving, I start to lose power at higher RPMs in 2nd and up as well

Hey @Eagle I think you are right on the money. Attached is a picture of the choke side of the carb without the air cleaner. The choke is closed for hot starts. A YouTube video for this model of carb mentioned that adjusting the choke is a matter of bending the connecting rods; unsure if that is wise or not however.

The vehicle starts perfectly fine from a cold start - I was assuming that the fuel had evaporated and the carb could balance the air/fuel mixture at that point, so that would indicate that spark is happening. I am not sure about the choke - I did not adjust this at all when installing the carburetor. I will dig up some resources on the choke and give it a try.

The rebuilt Varajet came as a unit all pieced together and supposedly was flow tested at the shop. I'm pretty confident that it's fuel delivery but I am also unsure what to adjust on the carb to dial that in

The ignition is operating as expected however there is no combustion and she refuses to fire up. I installed a rebuilt Rochester Varajet - which, while it came with instructions they didn't actually mark any of the adjustment screws nor provide pictures so it was unclear which screw is the curb idle, though I'm pretty sure it's the one on the left (passenger side) and bottom of the unit - if anyone knows that for a fact it would be nice to confirm before fiddling with it :)

Howdy! I have just changed out carbs on my 86 V6 - I installed a rebuilt carb on it and after I was finished, she started up perfectly fine and idled better than she has during the time I have owned the truck. Turned it off, then a few minutes later tried to start again and it wouldn't turn over. The next day same thing - on a cold start it fired up right away and idled great (possibly a little low on the RPMs). After taking it around the block a few times I turned it off and then could not get it to start. I suspect the problem is that there is too much fuel, however I have not found a good resource for adjusting this. Another clue - when driving, the truck seemed to lose power in the higher RPMs. Any ideas or resources on the Rochester carb would be great, thanks!