Need Some Help With Timing/carb Settings 1973 Mach 1 351c
FIRST - Welcome to the forum. You will learn a great deal here.
I would like to offer a few THOUGHTS before you get into working on
1. - You have some good looking parts in the motor and it should run well.
2. - IMPORTANT - -Today's gas is terrible for sitting. I always add a fuel
treatment like "Stable Green" or Sea Foam. Both of these products are
available at parts stores and places like Wall-MArt
The shelf life of todays gas is VERY short about 40 days.
So if your car sits for a month or so - -you could be getting gummed/varnished
passages in the fuel system.
3. - Checking timing is always a good idea of course - -BUT normally timing
will not change unless there are major issues such as a stretched chain BUT
the POINTS - -will affect timing as well. I point this out because you MAY want
to check a few other things as well.
4. - What type of set-up in the distributor? Do you have points or a pick-up module.
It is OK if you are unsure - - you could post a picture of under the cap and we can help. It is POSSIBLE - the contacts on the points are dirty and or sticking.
MY advice to start with is - - - add some fuel conditioner and some high octane
gas like High Test and drive the car for an hour and see how she acts after that.
Then would be the time to start adjusting the carb. Holleys are GREAT and VERY
easy to adjust.
If you check the timing - -be VERY careful with moving parts such as the belts
and pulleys. It is NOT dangerous if done CORRECTLY. You will be checking
timing with the motor at idle.
Before doing too much - please let us know how old the gas in the tank is.
Then we will be happy to help you with a course of action