ok i got a 2.8l v6 with what i think is the original 2barrel carburator. in winter or cool weather it startys and runs fine. when it get warm or humid the engine shuts off at part throttel if i let up it is fine and somtimes during acceleration it surges or is real sluggish for a second or two. it even feels as if it's got some type of a weird delay.

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"Work like you don't need the money, love like you've never been hurt, and dance like you do when nobody's watching."

 

Why this would happen seasonally I don't know. It would seem that it would run worse in the winter. It sounds like you have a lean condition because you step on the gas and it shuts down or boggs because its getting too much air and not enough fuel. I would think it worse in the winter with denser air. Other than a low fuel condition, I would say do a general check up, plugs, wires, cap, rotor, check to see if the carb needs rebuilding... Hope this helps a little...

Brian

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87 SC
Goodwrench 350, Hedman Hedders, CompCams XE268,
Edelbrock performer intake, No Cat, Flowmaster Muffler, Accel 8mm wires, rear suspension from WS6 TA, strut tower brace, Gas shocks all the way around, boxed lca's, Borg Warner Posi Disc rear w/ 3.70, B&M Shift Kit, K&N.
Hoping for 13's

Daily Driver: 94 Camaro 3.4 5spd w/ power pulleys, k&n, and a helluva stereo. Oh yea tint and neons (green neons on black car).