holley truck advenger secondarys

[82Scottsdale]

Well i got my whole truck together and engine and trans back in, so it runs fine and everything but about the time the secondarys are suppost to open they dont, i have the silver spring in there, but they dont seem to be squirting fuel when i manually open them, there is fuel in both bowls btw, this is on a 350 with vortec heads, also should i hook my dizzy advance to the manifold full vacuum port or the timed vacuum port on the side of my carb?

 

[badmix]

You wont see any fuel. Its a wierd thing, but the motor has to be under a load for them to kick in, sitting at idle wont do it and certainly wont when the engine is off.

 

[82Scottsdale]

well for some reason then my secondarys arnt opening up, they move freely but when i get on it it just wont go like it has before and just misfires cause its getting no gas, it runs fine at idle and starting off

 

[badmix]

Wooh there slick, secondaries not opening wont cause a misfire, it simply wont do anything, if youve got misfire, youve got something else mucked up. COUld be anything from bad spark plug, plug wire, dizzy, rotor, coil, vacuum, etc etc etc.

 

[shaun89]

ya, i had a thread a little while ago about mine. when they didnt open it just started to flatten out. no more power came when it should have. didnt mis-fire or anything. but like badmix said. it might be another problem. or maybe a problem not with the secondaries opening but a problem with fuel delivery in the secondaries or timing?