Recommended 4bbl carb for stock 318
Either you do or don't. If you have this intake, its a spreadbore.
* A Thermoquad or Quadrajet will be a direct fit.
* So will a Holley spreadbore replacement, but they are oddball carbs and best for people who like to experiment.
* If you have a Holley 1850, and it physically bolts on (dual stud holes in each corner of the base), then you still need to check that the throttles will open without interference and the mating surfaces seal bores and the PCV connection etc.
Either you do or don't. If you have this intake, its a spreadbore.
* A Thermoquad or Quadrajet will be a direct fit.
* So will a Holley spreadbore replacement, but they are oddball carbs and best for people who like to experiment.
* If you have a Holley 1850, and it physically bolts on (dual stud holes in each corner of the base), then you still need to check that the throttles will open without interference and the mating surfaces seal bores and the PCV connection etc.
