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07-24-2003, 05:11 PM
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#1 |
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Mike
Join Date: Jan 2003
Location: west chester pa
Posts: 2,473
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timing help
I have an hei That I am putting an adjustable vac adv and new springs.The motor is a stock 280hp crate motor from gm.Which springs should I use.The red[weakest]will start advancing at 1000rpm and build quickly up to 3000rpm adding about 17degrees.The blue will start building at1600 and give about 9 degrees by3000rpm.the red start at2100 and add7 degree at 3000.It is in a suburban with a700r4 and 3.08 rear.
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70'c/10, 71 suburban4x4 402bb, 72suburban 4/6 drop, 72k/5 4x4 blazer 4" lift 35 tires |
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07-24-2003, 08:52 PM
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#2 |
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Senior Member
Join Date: Jul 2001
Location: Muskegon,MI,USA
Posts: 6,026
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I would go with the weaker springs as chevy engines seem to like quick advance. We set our distributors up to get maximum advance by 2800 rpm for the mechanical advance.
Jim |
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07-25-2003, 07:44 AM
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#3 |
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Mike
Join Date: Jan 2003
Location: west chester pa
Posts: 2,473
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Thanks for the help...again!
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70'c/10, 71 suburban4x4 402bb, 72suburban 4/6 drop, 72k/5 4x4 blazer 4" lift 35 tires |
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