Quote:
Originally Posted by gmebey
My project truck is working me over...again
Now I'm having engine performance issue which arrears to be a combination of timing and intake.
I have a stock intake with a Edelbrock 1902 carb.
When I pulled the plugs I got a mix of rich and lean results. This doesn't surprise me since my intake is stock.
So what are my options?
Replace the intake or can I correct the issue another way?
Replacing the intake leads to another question.
What is a good affordable intake for general driving?
The second issue I'm having is the distributor is worn out. Any suggestions for a replacement?
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As previously stated, your intake manifold is not the problem. I've seen dyno tests on dual planes and the factory chevy iron intake is not very far behind the aftermarket aluminum ones.
IF the distributor is worn out, replace it first before you replace any other parts. Like Boog said though, a compression test would be a good idea; you may have some valve issues.
You also might have some valve seal issues making some of the plugs appear to be burning differently than the others. How about some stats on the engine: Miles, age, what repairs have been done, compression ratio, what kind of cam, exhaust, anything and everything. Any smoking upon start-up or when driving, is it an automatic trans or a manual, etc. A leaking modulator valve from the trans can put out some sneaky symptoms in it's early stages of failure by sucking in small amounts of ATF, and progress into a smoke machine.
If you do go aluminum intake, I recommend you go Edelbrock and get the Edelbrock choke linkage rod so that your divorced choke will continue to work. Keep in mind that you are disturbing the adjustments on the choke stove so you will have to play with that awhile until you get it right. You may have to play with the carb base gasket thickness but for starters make sure you use what Edelbrock recommends to go with their linkage to get the choke at least close.