Re: Q850 idle tuning help needed
I just put a Q series quick fuel 750 mechanical double pumper on my 78 383 vette & have noticed the stinky exhaust at idle too,the car has a fairly radical cam in it(10hg idle vacuum).I also have had a hell of a time trying to clean up the idle,very very frustrating.
After closing in the secondary air/fuel screws to about 1/2 turn out it helped a bit but at idle still smells,it runs well throughout the rpm range thank goodness
My next step is the air bleeds,only 100.00 at the local speed shop.
Thanks for posting
1970 GSX replica
455,11:1 forged pistons,Carillo Alum H-beam rods,T/A 510 cam,SP Intake,Holley HP 950 carb,ported T/A Street Eliminator heads,roller rockers,Mickey Thompson super scavenger headers
upgraded turbo 400 with 10'' 3500 stall
12 bolt rear,Moser axles,c-clip eliminator kit,Eaton posi 3:73 gears,HR parts n stuff rear end kit
Tubular upper & lower A-arms,trans-am front sway bar,adjustable shocks at all 4 corners
11.81@114 so far