Whenever I hook up my vacuum advance to ported vacuum, my 440 runs like CRAP, very rough, unhook ( mechanical only ) and it runs great
I have verified the distributor is holding vacuum, and with the engine running and a vacuum pump on the distributor the engine will advance smoothly for a second then get very rough when vacuum applied. Any thoughts out there, this is a stock 440. I do have a new electronic system i guess i need to install sooner than later but curious if anyone has some input
Thanks
I have verified the distributor is holding vacuum, and with the engine running and a vacuum pump on the distributor the engine will advance smoothly for a second then get very rough when vacuum applied. Any thoughts out there, this is a stock 440. I do have a new electronic system i guess i need to install sooner than later but curious if anyone has some input
Thanks