CorvetteForum - Chevrolet Corvette Forum Discussion - Holley ?: Effect of idle screw on transfer slot

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Quote:

Originally Posted by Fevre

Yes the Proform does have replaceable idle air bleeds but if I increase their size would that not also lean out the transfers lot? The hesitation is just off idle at any speed or rpm. but only if I cruise or hold the throttle for a little bit at that position.

You can also decrease their size and richen up the idle but that should be a last resort.

Quote:

Originally Posted by Fevre

I tore down the carb tonight and noticed a couple things, 2 of the throttle body to main body screws where a little loose and there are no power valve channel restriction openings in my sec meter block.

Loose screws sink ships. No PVCR? That's weird. I wonder if that's one of those metering blocks you get in secondary metering plate conversion kit?

Brett

Quote:

Originally Posted by Brettmc

Loose screws sink ships. No PVCR? That's weird. I wonder if that's one of those metering blocks you get in secondary metering plate conversion kit?

Brett

I am hoping that the loose screws are the problem, they where basically finger tight.

Yes that is weird, threaded hole but no where for the fuel to go. :confused: Put a plug in it and upped the jets, suprised I did not notice it before.

Quote:

Originally Posted by Brettmc

Keep us posted.

If you see a DP flying into orbit you will know it didn't fix it.

Just a follow up for any that care, I decided to try my little 600 vac sec Holley and car now runs like a champ, guess sometimes you can have too big a carb. Wish I had a 650 dp to try out.