road car cam for my 318

str12-340 said
current cam is a Crane 15005
adv. duration - 272
.454 lift
1800 to 5200 rpm

Not the right cam for my use...

I am confused, this is a 216/216 @ 0.050" with 110 degree LSA and you are saying it has low vacuum? What are you considering low? This cam should have more than enough... is the intake leaking or something?