LS7 454 BBC

[CorvZ061]

Grumpy, in my oil post I brought up another issue, and thought I would make a seperate post about it. I set the timing to 31* full advance at 3100. That solved the hesitation problem for the most part, and completely took care of the popping. I made a video today, of what the car sounds like right now, and how the RPM's are slow to come down.

http://www.youtube.com/watch?v=of-1uMs-O04

The car is running rich, but I don't think that would cause the RPM's to slowly fall back to idle, and the idle fluctuates everytime the car is started, set the idle at ~800 rpm or so and the next time the car is started it will idle at about 1200rpm.

 

[grumpyvette]

Grumpy, in my oil post I brought up another issue, and thought I would make a seperate post about it. I set the timing to 31* full advance at 3100. That solved the hesitation problem for the most part, and completely took care of the popping. I made a video today, of what the car sounds like right now, and how the RPM's are slow to come down.

http://www.youtube.com/watch?v=of-1uMs-O04

The car is running rich, but I don't think that would cause the RPM's to slowly fall back to idle, and the idle fluctuates everytime the car is started, set the idle at ~800 rpm or so and the next time the car is started it will idle at about 1200rpm.

Id try advancing the igntion timing about to 34 degrees first, then verify the carbs r
throttle blades are both fully opening and fully closing at both extremes of travel, ID verify carefully that theres no vacume leaks
call me later today after noon,561-792-1733

 

[CorvZ061]

I'm not sure if I just had a crappy rebuild or not, but I pulled the carb again,put lower number power valves in it, went with a 4.5 power valve instead of a 6.5 that was in the rebuild kit, put the carb back on, the car is now idling and running good, but still rich, whats the best way to lean out the carb a little?