Tripower hodgepodge
 

Bought a tripower from a fella in my more uninformed days early in my resto and come to find out it has a center carb with #7042114 which is a '72 Chevy application. Is this carb usable on a 389? If so, what jet size should I be using? Any other things I should b checking for? I am trying to tune carb right now and it seems to b idling rich...have the I/M screws probably 3 turns out. Don't feel any vacuum pull through outer carbs.
Thanks

I'd start wit .064" jets in the center carb--a little smaller if the venturi size of the carb is less than 1.250"

Normally, we set the I/M screws 2 turns out for startup.

Thanks Dick...took carb apart againt today and it has 58 Jets...too small? Venturi looks like 1 3/16".

.058” is way too small.

Ok thanks...so something less than a 64 since the Venturi is 1 3/16"?

Guess I'll b looking at the end carb Jets next.