Lousy throttle response

[TheGossert]

My '91 GW HESITATES WHEN I APPLY GAS FROM IDLE.

--Is it an accelerator pump problem?

--Is this typical of the stock carb and that's why so many owners upgrade to Edelbrock or TBI?!

--If I buy a new Holley 2300, can I expect better
throttle response?

--Or, is it a spark problem, which the TFI upgrade rectifies?

Larry

[ September 16, 2002, 02:56 PM: Message edited by: TheGossert ]

[Narnian]

I know there are ways to tune your carb to get rid of that problem but I don't remember how it's done. I went to TBI for that very reason, only to find out that my hesitation had nothing to do with the fuel system. First, I had a leak in the intake manifold - vacuum was erratic and created some delay. Second, and more importantly, my timing chain had an inch of slop in it, so no matter how much I tuned things I was going to get hesitation and stumbling.

I'd check the normal stuff first though. I'm sure someone will tell you where to look pretty soon here. As I was told, when you hear hoofbeats look for horses not zebras.

[PhilSine]

2 things I'm aware of.

1) Accelerator Pump

2) Vacuum advance

[FSJ Thing]

I'd guess that you're runnin' too rich, but it's hard to say since I'm not there to fiddle with it.

[kreb]

what do your plugs look like? their color will give you indication of too lean or rich. then it might be easier to diagnose.

benjamin

[Cliff]

Retarded timing can cause a hesitation