ive put an 87 305tbi in a 80 jimmy,87 harrness and all . the problem is the
timing mark retards then advances 10 degress and runs like crap til it
hits
1800-2000rpm. the timings set at 0 degress run better at 6 degess. put new
sensers, msd disturbetur, holley tbi, mild cam,194 heads, lifters, rockers
push rods,daul exhaust. and still retards then advance and runs like a
slug...... any help is very much appreciated thanks.
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