Holley Help????

I'm in the process of rebuilding a converted 4-corner idle Holley 750 DP (list- 4779-2). Upon dis-assembly, I found what looks to be RTV in the fuel groves of the base plate to separate the front and rear idle circuits. I have since taken it out.

How should I go about blocking this transfer groove? Will JB Weld hold up to today's fuels? How about drilling and tapping for a small set screw? When you buy one from holley, they have an aluminum dowel to plug the slot, but I don't have the means to do that.

How would you guys do it?



Here's how Holley does it:

Red RTV is how I would do it.
That way it could be undone with a lot less hassle if needed.

JB weld holds up fine against fuel (to answer that question).

Resurrecting this thread. I've got a list-4779-2 carb and I'm having a devil of a time finding the rebuild kit. Carbs are not my thing, but I'm good mechanically - what's up?
Can anyone help?
Thanks,
Jeff

JF900 said:

Resurrecting this thread. I've got a list-4779-2 carb and I'm having a devil of a time finding the rebuild kit. Carbs are not my thing, but I'm good mechanically - what's up?
Can anyone help?
Thanks,
Jeff

Click to expand...

https://www.amazon.com/dp/B00029JJEM/?tag=joeychgo-20

mopowers said:

https://www.amazon.com/dp/B00029JJEM/?tag=joeychgo-20

Click to expand...

Thank you sir!