holley 4160 help. 600cfm.

Not really a problem, just trying to better things. Like it seems to me even with the lightest spring for the secondaries they still open a bit late, like 3,300 to 3,500, i would like to be a little earlier. Also should i need to change the metering plates accordingly to primary jet changes. The car works great, just having fun trying to get more ya know.

I hear you there , im always playing with my carbs trying to get them perfect. I just picked up a carter afb 750 im going to replace the holley with just to see if its any better. if you haven't , check out some of the holley tuning videos. im still learning those things myself