I have a zz502 and it came with a holley 850 vacuum secondary carb. I yanked it off and installed a speed demon 850 mechanical secondary carb. Right now it is jetted 80 primary/88 secondary. I think the primaries may be ok but when I open the secondaries I think it is getting too much fuel. Any ideas what jetting might work best for this application? Street driven..no racing... well,not on the track anyway
Thanks