Quote:

Are you saying after sitting overnight, the same driving condition read leaner on the meter?
If so, gasket sealing is my first guess, metering block to body.



Yep, one day to the next. Only very short drive on Sunday, because it was popping from being lean when you placed it under load.

Thanks, I'll check the gaskets.
Good thing I've also ordered the gaskets at the same time as the float.

Quote:

Have you tested between the 40% secondary delay and the 60% secondary delay? If so, what have you noticed?



No I have not tested the different linkages.
I will have to get the carb tuned better before I can start on that.
I can only guess at the effects the 60% delay has.
But I would only try the 1:1 linkage with a powervalve in the back.
What effects have you noticed with the 60% vs the 40% linkage?
Better part throttle response?

Quote:

At WOT, I am not sure how long the shot would last (in seconds pending on the pump cam).




I don't know either, which is why I suggested the test.

Last edited by Frederick; 04/04/12 10:36 AM.

383B, 9.8:1, Lunati 60302(220/226@0.050 262/268Dur, 0.475"/0.494", Stealth heads, Performer manifold, QF SS-750-AN carb, 3.31Diff, A833 4-speed manual.