600 Holley on Bronco

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Mar 3, 2003 | 08:54 PM

oneblacksvt

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From: Sale Creek, TN

600 Holley on Bronco

Having trouble tuning my 600 single line. It stutters and spits and backfires when i try to start it. It will run for a few seconds but acts flooded. I jetted it down from 66's to 62's. Would it do this with a blown power valve??

Mar 4, 2003 | 02:28 AM

Superdave

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From: Indiana

600 Holley on Bronco

It could.

Is the carb new? Anything in particular that led to this?

Is it a 4160?

Mar 4, 2003 | 05:45 AM

oneblacksvt

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From: Sale Creek, TN

600 Holley on Bronco

The carb is fairly new. Had it on two trail rides and about 10 miles riding the roads. Then is started spitting and sputtering. It started this on the trail. It has backfired a few times. I think the model number is 1850, it is the chrome looking single line.

Mar 5, 2003 | 01:48 AM

Superdave

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From: Indiana

600 Holley on Bronco

After re-reading your first post, have you checked to see if its jumped time?

What kind of vehicle is it? Motor?

Mar 5, 2003 | 10:25 AM

oneblacksvt

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From: Sale Creek, TN

600 Holley on Bronco

It is a rebuilt 302 in a 1970 Bronco. I hope it hasnt jumped time.

Mar 5, 2003 | 09:06 PM

oneblacksvt

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From: Sale Creek, TN

600 Holley on Bronco

It is a 4160 Holley carb. Replaced power valve today yet to find out if it solved my problem. It wont quit raining.

Mar 6, 2003 | 01:42 AM

Superdave

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From: Indiana

600 Holley on Bronco

I hear that about the rain. Its freezing rain here now as I type this. At least it is not snowing. Has the unusual snow fall amounts reached as far south as you? We have had more cold and snow here this year than since I was a kid back in the 60's. Can't get anything done.

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Mar 6, 2003 | 10:57 PM

oneblacksvt

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From: Sale Creek, TN

600 Holley on Bronco

We havent had much snow at all but it has rained and rained. We had a couple nights where we had 5 inches of rain in 1 hour. BTW got the carb on and kinda tuned it, it wants to start but ahhh you know how they are. Checked timing, brought it to TDC and checked rotor in dist. dead on, so it hasnt jumped. That doesnt necessarily mean the Mallory is working right. Bought to scrap it for points.