Sluggo
Active Member
I spent the day attempting to set my carb up so my eyes don't melt and it does not smell up the house when I start it in the garage.
Plugs started out wet and black, way too rich although the car ran like a spotted ape.
The carb is a summitt racing 750 cfm vacuum seconday. It pulls 28 inches of vacuum idling at 850 rpm. 95 power valve, silver secondary spring, 77 jets in front and 79 in back.
The carb was set up from the factory. No adjustments other than idle and choke until today.
The float levels were a tad high so I adjusted them just a hair lower than the recommended middle of sight glass. Pulled the top of the carb and changed the front jets to 70s and put the 77s from the front in the back.
The exhaust smell is much more tolerable and the performance only seemed to be off a slight bit, gladly traded to lose the stench.
I also turned the idle screws in a 1/4 turn from 1 1/2 turns. Reset the base timing from 10 degrees advance to 8 with total timing at 35. these changes resulted in what you see in the pictures. The car was driven twenty miles and shut off before the plug was pulled.
I'm running Autolite 25 plugs gapped at .035. The way I interpret the plug is I need a colder heat range (24s) and maybe bump the jets down a tad more, maybe 68s in the front and 74s in the rear.
I'd like some opinions. Fire away.
Plugs started out wet and black, way too rich although the car ran like a spotted ape.
The carb is a summitt racing 750 cfm vacuum seconday. It pulls 28 inches of vacuum idling at 850 rpm. 95 power valve, silver secondary spring, 77 jets in front and 79 in back.
The carb was set up from the factory. No adjustments other than idle and choke until today.
The float levels were a tad high so I adjusted them just a hair lower than the recommended middle of sight glass. Pulled the top of the carb and changed the front jets to 70s and put the 77s from the front in the back.
The exhaust smell is much more tolerable and the performance only seemed to be off a slight bit, gladly traded to lose the stench.
I also turned the idle screws in a 1/4 turn from 1 1/2 turns. Reset the base timing from 10 degrees advance to 8 with total timing at 35. these changes resulted in what you see in the pictures. The car was driven twenty miles and shut off before the plug was pulled.
I'm running Autolite 25 plugs gapped at .035. The way I interpret the plug is I need a colder heat range (24s) and maybe bump the jets down a tad more, maybe 68s in the front and 74s in the rear.
I'd like some opinions. Fire away.
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bj