1966 Factory V8 Valiant Signet Restoration For My Other Daughter
Replaced the MC with a 15/16” bore. While there I measured the booster push rod length. It was way to long and preloading the MC. I assumed Booster Exchange set that. If they did it’s not for the right car (early Chevrolets had the same booster I am told). Bottom line check the rod adjustment from them. Adjusted to the right length. With the booster actually working now, the preload was clearly causing it to leak or something, and the 15/16” MC it is too good. I can lock the fronts with very little pressure. I may go back to the 1 1/16” bore MC.
Leaned out the Edelbrock midrange by one “stage” and got 1.0 leaner on the AFR meter. Now 12.5 at WOT 13.5 at idle and 14 cruising. Perfect.
Replaced the MC with a 15/16” bore. While there I measured the booster push rod length. It was way to long and preloading the MC. I assumed Booster Exchange set that. If they did it’s not for the right car (early Chevrolets had the same booster I am told). Bottom line check the rod adjustment from them. Adjusted to the right length. With the booster actually working now, the preload was clearly causing it to leak or something, and the 15/16” MC it is too good. I can lock the fronts with very little pressure. I may go back to the 1 1/16” bore MC.
Leaned out the Edelbrock midrange by one “stage” and got 1.0 leaner on the AFR meter. Now 12.5 at WOT 13.5 at idle and 14 cruising. Perfect.
