I figure you guys could answer this question posted on the Cdn Poncho site. What kind of vacuum would be normal with this setup?
327 .040" over, forged crank and rods
flat tops with small valve reliefs
59-60 cc double humps, 2.02/1.6" 461 heads
.040" quench with .016" in the hole and .024" composite head gasket
10.3 static and 8.0 - 8.1 dynamic compression
280 comp cam, 230 @ .050". .480" lift 110 lsa
L79 intake and dual snorkel air cleaner, 600 Holley
1 5/8" long tube headers
small body distributor with pertonix module and coil
timing is 16 initial and 38 with centrifigual
Idle is set at 750-800 RPM
Ive got 9.5 to 10" Of vacuum. Just discovered my vacuum can is wrong. Vacuum advance should be all in at idle. From what ive read I need a can rated 2" below the below idle vacuum. I have a B1 can rated all in at 16". I need the B28 or Vc1810 which is rated at 8" of vacuum to give 16 degrees of advance. My can isnt giving me nearly enough advance at idle.
Im sure my vacuum will go up and become more stable once I can source the right canister and add more advance at idle.
Anyone have a source for a VC1810 can?
Does 10" at 750-800 with low vacuum advance(presently) sound right for this engine build?
327 .040" over, forged crank and rods
flat tops with small valve reliefs
59-60 cc double humps, 2.02/1.6" 461 heads
.040" quench with .016" in the hole and .024" composite head gasket
10.3 static and 8.0 - 8.1 dynamic compression
280 comp cam, 230 @ .050". .480" lift 110 lsa
L79 intake and dual snorkel air cleaner, 600 Holley
1 5/8" long tube headers
small body distributor with pertonix module and coil
timing is 16 initial and 38 with centrifigual
Idle is set at 750-800 RPM
Ive got 9.5 to 10" Of vacuum. Just discovered my vacuum can is wrong. Vacuum advance should be all in at idle. From what ive read I need a can rated 2" below the below idle vacuum. I have a B1 can rated all in at 16". I need the B28 or Vc1810 which is rated at 8" of vacuum to give 16 degrees of advance. My can isnt giving me nearly enough advance at idle.
Im sure my vacuum will go up and become more stable once I can source the right canister and add more advance at idle.
Anyone have a source for a VC1810 can?
Does 10" at 750-800 with low vacuum advance(presently) sound right for this engine build?