holley 4 bbl 600 cfm on 2f

[40TUDE]

My dads 82 has a holley 4160 carb on it 600 cfm. It also has the offy manifold, it is certainly quicker than the avg 2f but is running too rich. Can I get this thing to tune correctly or would it be best to swap an aisin? For the record mpg seems fine, and this carb was the previous owners work.
Thanks

 

[subzali]

2F = 4.2L. At 4000 rpm that is about 593 cfm. I know what I would do.

 

[40TUDE]

Am I supposed to guess?

 

[fireflyr]

I think he's agreeing with you on your choice to go stock.

 

[Fast Eddy]

If you're not subject to smog checks, you could put a little bit hotter cam in it. If you have a header you could get some pretty good performance out of it on the street. It's always going to suck on steep inclines and declines.

I happen to have such a cam. Send a PM if you want it. It was made by Iskendarian specifically for this carb and manifold combination. You could also shave the head a little and run 91 or 93 octane.

 

[40TUDE]

Not looking to do engine work...just want it ruining well
Thanks

 

[Fast Eddy]

Just play with the jet sizes then...