Thread: 65 327 issue

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Originally Posted by 34_40

Have you completed a compression check?

What's the vacuum reading at idle? Is it steady or bouncing?

Checking compression this afternoon. Vacumm seems steady and normal.

Thanks for the input.

Compression test shows 95 to 110 in all 8 cylinders; not very good for a 10.5 piston motor.

Since they were all within 10% of each other, the problem would not seem to be piston/ring failure.

That lead to the carb; there is a problem with lack of sufficient air flow. Carb and intake coming off next.

Vacuum steady so no issue there.

thanks again.

Just a wild guess as I had the same problem with a 327. Are the plug wires on the right plugs?

Checked that early on; been there myself!!

Engine not getting enough air; fuel mixture screws don't seem to have any effect on one side.

Carb is off; haven't opened it yet; waiting for rebuild kit.

Thanks.

Originally Posted by corv65

......fuel mixture screws don't seem to have any effect on one side.

I'd say that a carb kit is going to be the answer, provided you clean it out totally. Back in the day I boiled out several carbs, after an old crusty mechanic explained it to me.

Originally Posted by corv65

Compression test shows 95 to 110 in all 8 cylinders; not very good for a 10.5 piston motor.

Using a hot rod cam that closes the intake valve very late in the cycle will contribute to low cylinder pressures. Please read this tutorial that I wrote several years ago.....
http://www.crankshaftcoalition.com/w..._compatibility

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