Correct Idle Speed for 5.7L 350 V8

Gap sounds right, idle speed hot in gear 600 rpm, 800-900 rpm cold in gear. What year engine, and is it all original ie correct distributor for the year of the engine?

Whitelightning

Thanks for the post, Whitelightning. It's an older engine (I would say roughtly the same year as the truck--mid-80s) that had a couple misses in it when I bought it. I had it rebuilt a year ago. The distributor matches and they work well together. Sorry I can't be more specific about the year. I've looked all over the engine for the VIN number (down by oil filter and along the engine case pad especially) and can't find it.

Austin

Whitelightn> > I have an '86 GMC 1/2 ton pick-up that now has a 5.7L 350 V8 in it.

Yeah, I should have mentioned about the original numbers: the emission control label says the fast idle 2200 RPM number should be set in Park or Neutral, and the 500 RPM idle speed set in Drive. The truck is due for a TX emissions inspection soon, so I might retard the timing some before I take it in. I think specifications say it should be set at 8 BTDC (4 on the timing indicator), right?

austin

aust> Thanks for the post, Whitelightning. It's an older engine (I would say