Why can't I burn rubber?

[chubble]

I don't mean to sound like a dumb kid by asking this question but I feel as if my truck aught to be able to at least bark the tires from a dead standstill with my foot off the break. I need to know if it is a problem with an oversized carb or just the way its adjusted. When I give it anything over half throttle all I get is bog. I just replaced my plugs last night and everything seems to be firing good. Idle is good. I know the engine can breathe good (new air intake and true duals to glass packs) I just don't understand why I am still getting the bog. She runs like a dream if I am just driving her like its supposed to be driven but If I ever get in a situation where I need to pass someone or get off from a stoplight in a hurry its not going to happen.

Setup is in sig.

 

[dhamp]

What gears in your rear??

 

[chubble]

Not sure, I'd have to look at them. My brother in law said he used to drive my truck back when it was still TBI and it would "roast em".

I should mention I am only rolling on 31's too.

 

[Jims86]

Not sure, I'd have to look at them. My brother in law said he used to drive my truck back when it was still TBI and it would "roast em".

I should mention I am only rolling on 31's too.

Then, theres your answer! Whats your base timing set at?

 

[chubble]

Is there any way of knowing that without a timing light?

 

[Jims86]

Is there any way of knowing that without a timing light?

Nope.

 

[dhamp]

Would going from 29's to 31's be enough to cause that, Jim?

 

[chengny]

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[woodsrider250]

Also, which Holley 650 is on it? has any jetting been done?

 

[MrMarty51]

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[Jims86]

Would going from 29's to 31's be enough to cause that, Jim?

That, along with age.

 

[HotRodPC]

Would going from 29's to 31's be enough to cause that, Jim?

Absolutely so. Especially considering the tire type and width.