going to the track tomorrow

at WOT i'm running lean at 13.2. do go up 2 sizes on the jets on the primary and secondary, or just the secondary?

if i lean up the idle from 12.2 to 14.0, will it affect my WOT AFR? if so, am i better off just fixing the idle AFR with the idle screws and see where it goes at WOT?

 

Mech or vac secondaries?

 

Gonzo one size front and rear. Bet that might be spot on. If not go back down one size on the primary.

 

mech 2ndary

sweet. hope it's spot on. i wont get a chance to check intil tomorrow on the drag strip

 

Unhook your secondary and make sure its not running super lean or rich on your primaries....

I also found my cruise afr to be mostly affected by my primary main jets. So changing just them it affected my cruise and wot. Maybe that from my engine turning 3600 rpms at 70 mph tho.

It really helped me to tune the carb in stages and this order.

Idle-light throttle changes; ifr, bleeds, and idle screws.

cruise; primary main jets, power valve, bleeds.

wot; secondary main jets, power valve restrictors, bleeds.

Throttle mash stumble; acc pump, acc cam, squirters.

I may have missed stuff as im going off memory.