Join Date: Sep 1999
Location: Redlands, California
Thanked 0 Times in 0 Posts
Re: Holley 470 cfm Truck Avenger
The size may be o.k. because of the vacuum secondaries. I once had an extended conversation with one of the tech guys at Kenne-Bell. He said even the vacuum secondary 600 cfm holley works well on the 225/231 (and yes, he knew I was talking about a jeep running at moderate rpms at most. Obviously it will never use the entire 600 cfm capacity, but he said the vacuum secondarys would prevent bogging and loss of torque at lower rpms, and give you as much as you need at higher rpms.
I would think with the small intake runners for the primaries on the Offy dual port intake, the low rpm performance would be even better. Also, the Truck Avenger has easily adjustable vacuum secondaries, so you could probably dial it in.
I will probably go for it, but house projects come first so it will probably be a while since it is working o.k. for now.