coutry boy, Mad-mav70 and farmer.. wright on the money it is a dog.. but made for road racing, it is a corvette, 290 gears but,rolling speeds of 100 to 190 in the 2500 to 5500 range with the use of the cam loosing vacuum for breaks..question how can this be fixed.. on road 25% of the time
2007-02-14 01:52:40 · 2 answers · asked by fish 1 in Cars & Transportation ➔ Car Makes ➔ Chevrolet
234/234 lift.488/ .488 @.050 if this correct, only know what was on the spec sheet when bought
2007-02-14 04:18:24 · update #1
go to Summit racing or Jegs. both sell vacuum canisters to store up vacuum for when u need it..Many hot cams dont make much vacuum...zoom
2007-02-14 02:00:10 · answer #1 · answered by Anonymous · 0⤊ 0⤋
We all wish we knew what the inches of mercury (vacuum) in your intake system at idle. Your power brake booster needs a minimum of 6 inches of merc.to operate properly. Give us your cam. specs. Too much intake and exhaust duration will murder you on the street. Anything over 222 degrees of duration @ .050 is excessive. You can increase the lift to .492 intake and exhaust. Chevrolet part number 24502586 has duration of .218 on the intakes and 228 on the exhaust side @.050 lift. lift is .492 on both intake and exhaust. this is a hydraulic roller ( LT4 hot cam) as listed in the GM Performance 06 Catalog.
2007-02-14 02:19:27 · answer #2 · answered by Country Boy 7 · 0⤊ 0⤋