lacking power over 2k

[brendend]

at first i was lacking power in the whole power band, after messing with the timing last night im not getting any power over 2k. ive replaced the plugs, wires, cap and rotar. any suggestions? also i put a snorkel on last night and im hearing a back fire. where should i put the breather from the valve cover?

 

[LOSTinthewoods]

Fuel pumps?

 

[bidibronco]

Sounds like your timing is off or (if it's carbed) needs to have it adjusted there.

 

[miesk5]

at first i was lacking power in the whole power band, after messing with the timing last night im not getting any power over 2k. ive replaced the plugs, wires, cap and rotar. any suggestions? also i put a snorkel on last night and im hearing a back fire. where should i put the breather from the valve cover?

yo!

You have a 91?

if so, is the back fire in da exhaust manifold or exhaust system/ or da intake manifold?

Any Check Engine Light?..post info here..can do a Self Check by Ryan M

Check for a vacuum leak...Check the catalytic converter to make sure it is not

 

[brendend]

i know there is a leak near the exhaust manifold, i think the gasket is shot. ill change the fuel filter to just incase. there is no check engine light. and what do you guys think i should do with the breather from the valve cover?

 

[bidibronco]

I've seen that breather plugged and ran into the air box weather it be a snorkle or what...

 

[madmax]

intake manifold:common causes of back fires in the intake manifold are bad spark timing as bidi recommends checking, or incorrect (usually lean) fuel ratio.

When starting an engine, timing that is too advanced will fire the spark plug before the intake valve is closed. The flame front will travel back in to the intake manifold, igniting all of that air and fuel as well..........The resulting explosion then travels out of the TB and air cleaner/snorkel

heh had that happen when using starting fluid, i was cranking the truck over and my father was spraying into the snorkel, not the TB, the plastic air cleaner box detonated in his face he wasn't hurt but I found pieces of the box over 75 feet away.