GaryBisiniere

what should i run the timing at on my car with a 302 bored to a 306 with a carb?

PX429

it depends on you car.

go two degrees up check the car and if it doesn't ping go two more untill it pings then go one down

GaryBisiniere

ya but what does every1 with a carb start at?

PX429

umm... 12

GaryBisiniere

thats for fuel injected its different for a carb

FiveLiterRiceEater

on my chevy i started at 8 and vacuum advanced it. it started out with um 15 inches of vac and we went up to about 17 or 18 i think and ended up bein 16 degrees before. if you're using a light i'd probably start at base timing and bump it up a few degrees, hit the throttle and listen for pinging. i was told with a carb you want it to ping a little bit on accel, but not to much and not too long. and just on accel.

PX429

well my 69 is at 18 but then again that is a 429

tinman

Tune car with a dwell tach and a vacumn gauge.
Use timing to check/verify...
With car running at idle, look and see what vacumn reads. Move the dizzy untill you get highest vacumn reading. Now check with timing light and see what the timing is in degrees.
That's how I've been doing them 35+ years, works good........

HACKGT350

the carbs are different some like more advancement than others mine likes 13 any higher it back fires out the carb just change your timing and see what it likes

P Zero

13*.
-P.