Jared_blown5.0

Hi, i just got done installing my vacume gauge and this is what i found on idle.. 11 psi of vacume. I dunno if that is good or bad, keep in mind that i do have a big cam (.565 lift and .565 lift custom grind) Thanks in advance for the replies.

Joel5.0

What about the advertised, @.05" duration and Lobe Separation Angle numbers?....

Jared_blown5.0

Camshaft Specification Table
Part Number 35-518-8
Engine 1969-1995 Ford
351ci,
Windsor,
8cyl.
Grind Number FW XE274HR-12
Description

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Intake Exhaust
Valve Adjustment 0 0
Gross Valve Lift 0.555 0.565
Duration At 0.006 Tappet Lift 274 282

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Valve Timing At 0.006
Open Close
Intake 29 65
Exhaust 77 25

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These Specs Are For The Cam Installed At 108 Intake CL
Intake Exhaust
Duration At 0.05 224 232
Lobe Lift 0.348 0.354
Lobe Separation 112

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Recommended Valve Springs 986-16

Jared_blown5.0

or go here if that is confusing
http://www.compcams.com/Technical/Se...umber=35-518-8

Joel5.0

274°/282°, 224°/232° @.05", 112 LSA and 54° Adv. OVL, +4° OVL @.05" making 11"Hg @idle...a little lope idling?........@1,100 rpm it should jump to 18"-22"....right?

Jared_blown5.0

at about 1300 r's on stock tack it jumps to 20 psi.

Tims 88GT

hg bud not psi that sounds about like mine, when u go down the road and get on it hard and then let off whats it read?