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Old 10-23-2015, 01:51 AM
miket1 miket1 is offline
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Default Re: Horsepower for 69Z 302 w/#140 cam

The new engine is built w/replica #140 cam from Howards Cams, they say it is new technology w/smoother opening & closing ramps than the old GM cam, lash is .022/.022, It has 1 hour of break in time at fast idle from 1200 to 1700 ,, fine tuning the carb. & distributor the 302 is getting very crisp and idles down to 1000 rpm nicely, i need to adjust a couple things but so far it is running great.
I will not dyno the engine, just curious what approximate HP would be.
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Old 10-24-2015, 01:05 PM
Scott69Z Scott69Z is offline
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Default Re: Horsepower for 69Z 302 w/#140 cam

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: miket1</div><div class="ubbcode-body">The new engine is built w/replica #140 cam from Howards Cams, they say it is new technology w/smoother opening &amp; closing ramps than the old GM cam, lash is .022/.022, It has 1 hour of break in time at fast idle from 1200 to 1700 ,, fine tuning the carb. &amp; distributor the 302 is getting very crisp and idles down to 1000 rpm nicely, i need to adjust a couple things but so far it is running great.
I will not dyno the engine, just curious what approximate HP would be.
</div></div>

Do you know how much vacuum your engine makes at idle? Are you running the stock 4053 carb and 480 distributor? I am interested in using this cam in my street dz302 but worried it will have idle issues and load up at idle. I really want to make maximum horsepower using stock parts.

Scott
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