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#1
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350 SBC timing question
Trivial question all. I have a mid 70's 350 chevy small block. I recently converted it over to an HEI. It runs really well but I think that the timing may be off a little. What should I set it to? I originally set it at 8 degrees and that is where it is now. The engine starts quick, almost too quick. I cannot disengage the starter fast enough when starting it, it seems. The motor is all stock I believe. Any advice here on the timing? I don't like the way it starts so fast. It seems like I remember reading somewhere that if the timing is a little advanced/retarded it can cause the motor to start too fast. The power curve seems a little low at WOT. The truck runs really good though. I don't have a manual....( don't tell me, I know I need to get one but I like your guys advice better!!
Thanx all. |
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#2
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re: 350 SBC timing question
there`s no such thing as a engine that starts too fast. Most times for stockers or slightly modded engines we set initial or base timing at 12 degree`s btdc, and 36 - 38 degree`s full advance all in by 3000 RPM, however, for a completely stocker, 8 where it`s set to 10 degree`s should be fine. And while I`m thinking about it, if the truck had a original points distributor, did you run a new wire to the HEI? the points ignition ran on lower voltage than a HEI requires, make sure the wire is getting a full 12 volts.
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#3
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re: 350 SBC timing question
yeah, did that routine already (have older threads on that). The old dist. had a condenser mounted to the side of the dist. to adjust the voltage (absorbing juice). Checked the original wire and it ran a constant 11.92-11.98 volts. The truck runs good, I have no complaints. I just wish the starter didn't drag but it is because the motor fires so quick and takes off. I feel it will eventually destroy the starter...
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#5
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re: 350 SBC timing question
They all do that. It's perfectly normal for a stock (or even mildly modified) old Chevy to start real fast. If they don't, something's broke. Only hurts if you don't let off the key.
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