BBC 454 Monte Hauler

[GriffsMonte]

Guys and Gals i need some help,

 

I just bought a truck to haul the Monte with once she is finished, 1979 Chevy C-30 with 454 mated to a th400.

 

I figured you all could help answer a few questions.

 

1.) is whiteish smoke out of the tail pipes a sign of a lean condition ? i think the #1 is fouled

 

2.) what size carb do you guys recommend for a 454 ? the guy i bought it from put a eddy1406 on it. which is only 600cfm

and it seems to surge at low speed(around 20 mph).

[Sam (Bones)]

white smoke is usually water or antifreeze

 

does it clear up when warmed up?

 

a 750 cfm is plenty for a stock/mild 454

[GriffsMonte]

No signs of it being a water issue. i changed the plugs cap and rotor a week ago and no smoke after that and yes if i drive for about 10 minutes or so there will be no more smoke out the pipes. i figured the timing was of and the small carb wasnt helping the situation either

[Sam (Bones)]

it's just burning off the condensation

[GriffsMonte]

ok well im going to get it tuned up by my engine guy this week hopefully. Do you think i should upgrade to a bigger carb before i get that done ? or will the 600 be good enough

[mikenewman]

needs bigger carb before tune up so he can tune the carb to the motor. the white smoke sounds like a head gasket is seeping at worm conditions. after it sets take out the plugs more than likely find a plug wet

[GriffsMonte]

Thanks for the help on this one guys, i actually got a bigger carb for it an eddy 750 cfm and it's running a lot better. looks like the motor was just starving with that 600

[cny first gen 71]

Looks like its gonna be a pretty cool hauler once you get it done good luck with it.

[GriffsMonte]

Thanks. Yea I'm hoping to finish it soon so I can pull the Monte with it