Ok, folks I took the girl out for her maiden drive last night after a long "quick" engine/trans swap, brakes, suspension, floors etc... and it was rather disapointing.
360 .030 Sealed Power 9.1 flattops, Crane 216* .454 cam, eddy rpm intake 600 holley DP, #587 heads that had been cut ? how much, but I had to have them cut another .010 cause the previous person cut them very badly. I have .045 shims under rocker shafts to get them right. factory high stall converter 727 with 2.94 rear.
Ok, when it runs in garage its great. revs super fast, but when I drive it, valves ping like crazy just driving under 25mph. timing was at 18* with max advance of 30* vacuum advance would not work on timed port(carb issue) but when I plug into manifold vac. it skyrockets to well over 60* at idle, so I just run mechanical advance.
Today I put in one of the Mopar quick advance springs in place of the yellow spring and left the blue spring in. still no vacuum advance I have an initial timing of 10* 34-35* at 2500 rpm and at 3000 it goes to 45* and holds. Should I leave it, or advance it to a total of 52*, where the book calls for it to be with a combination of mech and vac advance?
SORRY FOR BEING LONG WINDED!
360 .030 Sealed Power 9.1 flattops, Crane 216* .454 cam, eddy rpm intake 600 holley DP, #587 heads that had been cut ? how much, but I had to have them cut another .010 cause the previous person cut them very badly. I have .045 shims under rocker shafts to get them right. factory high stall converter 727 with 2.94 rear.
Ok, when it runs in garage its great. revs super fast, but when I drive it, valves ping like crazy just driving under 25mph. timing was at 18* with max advance of 30* vacuum advance would not work on timed port(carb issue) but when I plug into manifold vac. it skyrockets to well over 60* at idle, so I just run mechanical advance.
Today I put in one of the Mopar quick advance springs in place of the yellow spring and left the blue spring in. still no vacuum advance I have an initial timing of 10* 34-35* at 2500 rpm and at 3000 it goes to 45* and holds. Should I leave it, or advance it to a total of 52*, where the book calls for it to be with a combination of mech and vac advance?
SORRY FOR BEING LONG WINDED!