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Chevrolet Repair/1981 C-10 2wd 305 4bbl auto tune up specs

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Question
I have a 1981 C-10 2wd ,305 quadrajet with automatic , I need spark gap ,timing , and any carb tricks ( some places were unplugged and adjusted on the last paid tune up to make it run better ) resources at IVYTECH Comunity College do not go back that far .
                            Thank you ,
                              Frank

Answer
Hi Frank.... thats a ways back... if memory serves me correctly... timing should be 6 or 8 degrees before TDC... plug gap if it has r45ts plugs should be 45. and the carb is.. turn jets in till engine falters then out till it runs smooth then 1/4 turn... hope this helps

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Robert Summers

Expertise

domestic auto/truck repair, auto body, painting. I currently own a large auto/truck/marine repair shop. 40 years certified 310S,310T,310B in ontario Canada

Experience

40 years certified 310S,310T,310B ontario qualified, 7 years with GM have owned my own shop now for the past 27 years.was automotive marketing director for large auto parts supplier.

Organizations
CFIB (current) past member AARO and APAA.

Education/Credentials
grade 12 plus 2 years college. many aftermarket training courses

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