Tune up tip - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Huck · 07-20-2003, 05:19 PM

With many of us upgrading to HEI, a common problem seems to arise if you try to run at factory specs realtive to timing. Apparently a basic stock 350 likes it's timing to be around 12 degrees advanced with an HEI. Two fairly stock 350 blocks had show a big imrpovement with that little change from the stock settings. So, if your 350 with HEI and a stock carb or even an Edlebrock carb is running kind of punney, try advancing you dist to around 12-14 degrees and see what I mean!!! Huck

07-20-2003, 05:19 PM	#1
Huck Senior Member Join Date: Jun 2001 Location: Shelbyville, KY Posts: 3,261	Tune up tip With many of us upgrading to HEI, a common problem seems to arise if you try to run at factory specs realtive to timing. Apparently a basic stock 350 likes it's timing to be around 12 degrees advanced with an HEI. Two fairly stock 350 blocks had show a big imrpovement with that little change from the stock settings. So, if your 350 with HEI and a stock carb or even an Edlebrock carb is running kind of punney, try advancing you dist to around 12-14 degrees and see what I mean!!! Huck



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