I just rebuilt my motor. Its a 306 basically stock rebuild with the exception of a B303 cam and ported and polished stock heads. Im having trouble with the timing. It seems that no matter where i move the distributer the timing doesnt change. I have no timing light and im trying to go by ear. The car surges a little which i expect but it also seems to run rough at low rpms like when im cruisin in 3rd, and sometimes it dies when i take my foot off the gas and coast. Is there something else other then timing that i should be looking at?
B303 in a Speed Density
- Thread starter Shauns GT
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2bad4z28
New Member
If it's a speed density car, it will never run right with a cam that much bigger than stock (I know people who have tried) unless you have a custom made computer. Convert it to mass air and everything should be cool.
5.0Droptop
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That cam will run rich at idel and lean up top and prolly suge like mad. SD is cammable but you need a wide lsa to let it pull strong vaccume at idel. the crower 15511 is a great cam for sd.
QDRHRSE
New Member
Get a timing light
Do yourself a favor. Go buy a cheap timing light. Anything else could be bad. You'll never time the car right without a timing light....or a vacuum gauge (oldtimers method).
Do yourself a favor. Go buy a cheap timing light. Anything else could be bad. You'll never time the car right without a timing light....or a vacuum gauge (oldtimers method).
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