|
Re: 87 running lean?
Make sure you unhook the brown wire under the brake booster to advance the timing.
That really makes a difference on TBI trucks, advancing it 3* on my dad's 87 305 made a big difference in throttle response/power. 
__________________
Mine- '91 GMC RCSB 2wd, 350tbi, 5 speed, 3.42 G80
-Dad/Me Projects/Toys
75 SWB Silverado Factory 454, Th400
87 SWB Silverado 305tbi, 700r4, 2.73's...17.4 @74mph
a couple dodge cummins trucks.
PLEASE DO NOT MESSAGE ME ABOUT FACTORY TACH DASHES, I AM NOT MY FATHER AND I KNOW VERY LITTLE ABOUT THEM. Thanks
|