carb issues

[rwhite65]

Originally Posted by PKRWUD

Just out of curiosity, did you readjust the accelerator pump linkage after swapping accel. pump cams?

No I did not. I cant say I have ever personally done that. I have been waiting for you to drop in PKRWUD, good to see you.

Dark Night-
Are you saying you think Holley has given me bad advice?

Ryan

[PKRWUD]

Originally Posted by rwhite65

No I did not. I cant say I have ever personally done that. I have been waiting for you to drop in PKRWUD, good to see you.

Thanks! It's good to be seen! lol.

Any time you change the pump cam, or the screw hole with which you mount the cam, you must check the linkage, and make sure it's properly adjusted. You want to see fuel come out of the squirter at the slightest tap of the throttle. If someone sneezes hard enough, standing next to your engine, you want to see fuel start to spray out of the squirter. It needs to be adjusted that precisely. On the other hand, though, you don't want to bottom out the pump while there is still more lift coming, otherwise you won't get a full shot. If there is even the slightest delay between tapping the throttle, and fuel coming out of the squirter, you'll have a flat spot on acceleration. As you open the throttle, you are letting in a large amount of air, and without the added fuel the accelerator pump instantly provides, you will experience a lean bog until the fuel can catch up.

Pull the air cleaner, and look into the primaries, and tap the throttle lightly. Does fuel instantly start to come from the squirter?

[rwhite65]

Well, I have not pulled the old power valve, but using the Holley way of checking...I used a vacuum gauge with the car warmed up and in gear. I pulled only an eight on the gauge. Holley stated to cut that in half, so I bought the 3.5 power valve. I have not put it in yet, but I am thinking I have the stock 6.5 power valve.

I hope to change it out tom before work and update, I will also check the throttle linkage as you stated.

thanks,
Ryan