NEED HELP...

[fatso86]

i have 1988 cutlass supreme with 307ci olds motor...(80000 miles)
STRAIGHT 2.5 inch duals(no mufflers) that run out in front of the back tires...
New timing chain.

i asking why will my 307ci olds motor not spin the hell out of one tire and run like a b*tch...
i know the 307ci are not monsater but i know it will light up a tire (its a v8)...
MY QUESTION IS WHY DOES IT NOT HAVE THE POWER IT SHOULD...
I PUT DUALS ON IT AND PUT A NEW TIMING CHAIN SET AND IT STILL DOES NOT RUN LIKE I KNOW IT WILL...
MY FRIEND HAS 86 REGAL AND IT WILL SPIN THE **** OUT OF ONE 16 INCH GTA WHEEL...
THEY ARE BOTH SAME BLOCK AND SAME HEADS...

 

[79wagonator]

Try putting some sand in the road to get it started 😀
Are sure its tuned right?
Is your timing right?
Is it a Quadrajet? are the secondaries opening?
Maybe your cam is worn out? How many miles on the motor?
A mild cam in there will make a world of a difference. 8)

 

[86_olds]

i has a stock 307 also and it wouldnt spin the tire unless ground was wet lol and my carburater was freshly rebbuilt so it might be something else ??

 

[fatso86]

thats what people say it will only spin tire in the rain my *ss...i have seen 307ci olds motors that flat light a tire up and i have seen them that will not do a damn thing WHY...

 

[megaladon6]

there's also the trans and the rear gear to consider. if you have a 2.14 rear you won't spin without major power, a 3.73 will spin on a 307. besides, a timing set does nothing for power and the headers/exhaust won't do anything appreciable for it either.

 

[-83MONTESS-]

there's also the trans and the rear gear to consider. if you have a 2.14 rear you won't spin without major power, a 3.73 will spin on a 307. besides, a timing set does nothing for power and the headers/exhaust won't do anything appreciable for it either.

x2 on the trans and gears. After swapping from my 2.29 to a 3.73 I dont even really have a need to powerbreak it.

 

[ElCaminoGRAN/SPORT]

But at the same time something is not possibly right cause i had tha same car88 with a 307 and a junkyard transmission and i could light the whitewall tiree up at will and i did.Now for being the originaal engine i will say mine ran well and im sure the rear was still factory...

 

[megaladon6]

You mean with this car you have now, or an identical one? Rear gears varied even in the same year. They could have had slightly different packages