Normal Timing for 302
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Joined: Feb 2003
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Normal Timing for 302
Hi - Just fired the 302 for the first time. It is a 78 block w/ heads from an 87 (both f-150's), mild cam upgrade, and 4bbl carb, single glasspack currently.
Now the question:
Is it normal to have it running at 10 degrees after tdc (because that is where it does right now)?
Now the question:
Is it normal to have it running at 10 degrees after tdc (because that is where it does right now)?
Hotshot
Joined: May 2003
Posts: 11,141
Likes: 25
From: south louisiana
Yea 10 degrees is OK, might even be better with 12-14 degrees. Just remember the more timing you give it, the more power it'll make up to a certain point, but at the same time, it's appetite for higher octane fuel will also increase.
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Joined: Apr 2004
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10 degrees AFTER TDC is retarded smog motor timing.
Pre-smog 289s were 6 degrees BEFORE TDC for 2 BBL and 12 for 4 BBL and Hi-po.
You may be stuck with the After TDC depending on your cam and ignition set up. I can't be sure, but I don't think my 289 would even run at 10 ATDC.
Pre-smog 289s were 6 degrees BEFORE TDC for 2 BBL and 12 for 4 BBL and Hi-po.
You may be stuck with the After TDC depending on your cam and ignition set up. I can't be sure, but I don't think my 289 would even run at 10 ATDC.
Hotshot
Joined: May 2003
Posts: 11,141
Likes: 25
From: south louisiana
Originally Posted by 85e150six4mtod
10 degrees AFTER TDC is retarded smog motor timing.
Pre-smog 289s were 6 degrees BEFORE TDC for 2 BBL and 12 for 4 BBL and Hi-po.
You may be stuck with the After TDC depending on your cam and ignition set up. I can't be sure, but I don't think my 289 would even run at 10 ATDC.
Pre-smog 289s were 6 degrees BEFORE TDC for 2 BBL and 12 for 4 BBL and Hi-po.
You may be stuck with the After TDC depending on your cam and ignition set up. I can't be sure, but I don't think my 289 would even run at 10 ATDC.
