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it want be if you idle it back down. you cant get a vac. reading at 1500 rpm's, i think you might be trying to set the rpm's with the dist. cant do that. move the dist up, idle the carb. down untill...

did you put new gaskets on? do one more thing get it running as well as you can and spray carb. cleaner into the valve covers, through the pcv valve hole or breather. see what happens.

[QUOTE]Originally posted by S19243H
12 is all i have if i keep turning the idle back to 900 if i dont turn the idle back then ill get 17'' [/QUOTE



ok

something is not right here, forget the timing light, pull your dist up untill you get 17" back down to 15" and idle the carb. to 900 and adj. the air screws will it run then. i thought you said 12"...

that sounds right, but set the light where you want it 8 to 12 degrees is a good start. with the light on 10 when you look at your tab that should be on 0. if you have your light on 0 then the tab...

what do you use the truck for? daily driver or what.

if the HB mark is true TDC then what ever the timing light shows is what the timing is. if your mark is right and the light says 10 drgeers...

i dont know what to tell you. with 12 " of vac its not gonna idle right, if its a leak you need to fix it , and if its the cam you need a conv. if its a leak it shuld or will increase rpm if you...

around the shaft,that dont mean nothing, most any carb will pick up a little if you spray the shaft. put the new intake gasket on, see what happens. when you cant find the vac. leak no where else...