Thread: 350 issues

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I probably don't have more knowledgr than you but, since no one tried to help I will put in my 2n cents.
Sounds like you have everything working except fuel. You have 9 lbs. FP. Recomened by the carb co. Seems like it should be 4-5 as most posts I've suggest.
Won't start unless you force feed it fuel.
Sounds like the problem is the carb. Do you have a known good working carb you could swap on just to try?
If not try to read all you can on your carb and then see if it is doing what it is supposed to do.
I am only familiar with the Rochester.
Problems with them would be blocked passages for idle circuit preventing fuel from entering the venturi and not startingWill start if you pump it but won't stay running.
Hope this helps. Bob

Well – first let’s have a cup of coffee! It sounds like you may have several issues and they need to be diagnosed/healed one at a time.

First, I would echo the fuel pressure recommendation, i.e., get it down to 5 PSI.

If you don’t have the Holley manual, download here: http://www.holley.com/data/Products/...l/199R9881.pdf

The 4160 has a lot of connections. All of them need to be either “connected” or plugged. Refer to the picture below and make sure that you have everything hooked up correctly. Pay careful attention to numbers 3a, 4, 7a and 7b - if you’re not using them, plug them. Also #5 is the only port the PVC should be connected to.

Unless you have one “killer” cam, your vacuum needs to be higher. Would hope you have at least 17 inches at idle, 20-22” is better. Measure your vacuum at 7a. Your current reading tells me there is a vacuum leaks or something open somewhere.

Give this a go and let us know what the results are.

Good Luck,
Glenn