Vacuum Advance For 390 Ford at Jaime Arndt blog

Vacuum Advance For 390 Ford. Racing distributors don't use vacuum advance because the gas pedal is always down. Gentleman, my question concerns my initial timing is set at 12 degrees. If you have a vacuum advance distributor, you want to do this with the vacuum line to the distributor off and plugged. To check, take a vacuum reading at idle with the a/c vacuum hose disconnected. Then reconnect it and see if the reading is lower once. I have a 390 in my 75 f250 (points ignition), it was stock low compression 8:1 cr and after the rebuild. I am need help in determining the proper distributor vacuum advance unit that should be on a 1968 xr7 390 gt (s code) that. Vacuum advance is designed to give extra advance only at cruising speeds. Starts up great every time, but top end drops off at 3500.

Gentleman, my question concerns my initial timing is set at 12 degrees. To check, take a vacuum reading at idle with the a/c vacuum hose disconnected. Starts up great every time, but top end drops off at 3500. If you have a vacuum advance distributor, you want to do this with the vacuum line to the distributor off and plugged. Then reconnect it and see if the reading is lower once. I am need help in determining the proper distributor vacuum advance unit that should be on a 1968 xr7 390 gt (s code) that. Vacuum advance is designed to give extra advance only at cruising speeds. I have a 390 in my 75 f250 (points ignition), it was stock low compression 8:1 cr and after the rebuild. Racing distributors don't use vacuum advance because the gas pedal is always down.

Accel adjustble vacuum advance kit 31035 Hot Rod Forum

Vacuum Advance For 390 Ford I am need help in determining the proper distributor vacuum advance unit that should be on a 1968 xr7 390 gt (s code) that. To check, take a vacuum reading at idle with the a/c vacuum hose disconnected. I am need help in determining the proper distributor vacuum advance unit that should be on a 1968 xr7 390 gt (s code) that. Vacuum advance is designed to give extra advance only at cruising speeds. Gentleman, my question concerns my initial timing is set at 12 degrees. Then reconnect it and see if the reading is lower once. If you have a vacuum advance distributor, you want to do this with the vacuum line to the distributor off and plugged. Racing distributors don't use vacuum advance because the gas pedal is always down. I have a 390 in my 75 f250 (points ignition), it was stock low compression 8:1 cr and after the rebuild. Starts up great every time, but top end drops off at 3500.