Idles great, bogs down on acceleration

[genthree]

Been running great all spring.  Just gradually getting more sluggish during acceleration.  Now it is almost like timing is totally off.  Here is what I have done so far:

Replaced; plugs, wires, coil, vacuum lines on top of motor, fuel filter, added octane booster to gas

Took off the carb (holley 2bbrl) cleaned and inspected (little dirty, but not terrible); blew it all out with carb cleaner;

Checked timing, check vacuum advance at dist,

Pulled valve cover on drivers side to check for broken lifter spring (I have a ticking sound in the valve train near #5)

I played around with the mixture and didn't seem to help/hinder

Over the winter I rebuilt the 302 and the C4; it is still shifting at all the correct points so I don't think I have a vacuum issue.  i dont' have a gauge but I will get one this weekend and double check.  Haven't checked compression yet,

I think I am going to pull the carb again and go thru it a little better.  

Any other thoughts would be greatly appreciated....

 

[Bully Bob]

Sluggish underway or rev'n in neutral...., or both..?

All I can think of at this time is Holley power valves can be a bit sensitive.

Drivetrain isn't draging/binding some how is it..? Like a wheel/axle bearing or the rear end.?

 

[genthree]

it bogs down even on light acceleration, just in neutral if I give it a quick throttle is bogs almost like it is choking itself out.  I have a manual choke and it's open....  I may just put another rebuild kit in the carb and see if that helps.  

Timing is steady, steady at idle and while revving the engine I can see the vacuum advance working and it is also steady.

can't be a plugged exhaust, because, once you get thru acceleration it seems to run good....  The more I type the more I think it must be the power valve....

How you been?

Had another kid graduate from high school so most of the spring was getting ready for that...

 

[Bully Bob]

Doing good here.,

Sounds like all's well up your way.

Power valve or maybe the accel. pump., or both.

The float level is adjustable via the top/exterior.

Check to see if it didn't slip out of adj. if ya didn't already..

 

[genthree]

Yeah I think I just need to retune the whole carb.  I was running SOOO stinking good!!!  I was even letting the kids drive it to school...  

I will just put is a new rebuild kit, I am sure even a slight vacuum leak in either one of them will cause me huge issues....