this is wierd, smoother idle ?
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this is wierd, smoother idle ?
Engine is 327
12 to 1 compression
230@50 cam 108 degree separation
3000 stall converter
750 holley double pumper
Open 4 into 1 headers.
Weird question, removed the cast iron marine hi rise today (copy of old z28 intake) and installed a 7531 weiand team g with the 2 inch taller plenum. The idle is smoother and car is quieter at idle (open headers) with the single plane than the dual plane was. It seems to have actually improved low end manners, this is going against conventional wisdom, but seems to be the case
12 to 1 compression
230@50 cam 108 degree separation
3000 stall converter
750 holley double pumper
Open 4 into 1 headers.
Weird question, removed the cast iron marine hi rise today (copy of old z28 intake) and installed a 7531 weiand team g with the 2 inch taller plenum. The idle is smoother and car is quieter at idle (open headers) with the single plane than the dual plane was. It seems to have actually improved low end manners, this is going against conventional wisdom, but seems to be the case
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