- May 2, 2005
- 3
- 0
- 0
67 Mustang
289 engine
4bbl Edelbrock Performer
Got the old parts off(intake manifold & carb), got the new stuff on, rerouted some hoses and lines to fit the new configuration, changed the oil and it fired right up. The distributer matched up with marks I made so the timeing should be pretty close.
However it idles at 3000 rpm and measures 8 on the vacum scale no matter how a adjust the mixing screws. I realize adjusting carburators is an artform I'm not proficient at and will glady take my car to a shop for it but I'm afraid to take it out of park. Even opening the throttle a quarter way emits a deafening roar and rocks the front end.
Also there is an odd rattling sound in the engine that was not there before the converstion. A freind who knows more than me but not much thinks it may be the rocker arms hitting hard. He used the description "hammering" when refering to the sound. There are also small poping backfires through the carb.
I'm going to continue twisting screws and turning the distributer until it sounds driveable. Hopefuly one of you will be able to help this amature before he backs into the cross street neighbors house.
289 engine
4bbl Edelbrock Performer
Got the old parts off(intake manifold & carb), got the new stuff on, rerouted some hoses and lines to fit the new configuration, changed the oil and it fired right up. The distributer matched up with marks I made so the timeing should be pretty close.
However it idles at 3000 rpm and measures 8 on the vacum scale no matter how a adjust the mixing screws. I realize adjusting carburators is an artform I'm not proficient at and will glady take my car to a shop for it but I'm afraid to take it out of park. Even opening the throttle a quarter way emits a deafening roar and rocks the front end.
Also there is an odd rattling sound in the engine that was not there before the converstion. A freind who knows more than me but not much thinks it may be the rocker arms hitting hard. He used the description "hammering" when refering to the sound. There are also small poping backfires through the carb.
I'm going to continue twisting screws and turning the distributer until it sounds driveable. Hopefuly one of you will be able to help this amature before he backs into the cross street neighbors house.