Quote:
Originally posted by Brad Pfeifer
I wonder what other modifications were made to give it a 30+ HP bump beforehand.
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I think Ford generally understates their engines to be conservative. For example, their 351w crate with victor jr manifold is rated at 385hp, but if you talk to most dyno shops or windsor owner, that engine is generally considered 400hp at the dyno. I think Westech got the extra HP just because Ford understates.
The 392 is an awesome engine and I think you will be very pleased with it. You should be very close to 500HP. Streetable is almost a subjective term. Some people want an engine that idles at 600rpm, while others can accept 1200. A heavy clutch might bother some people while it is acceptable to others. 500hp usually is on the loud side, has a heavy clutch, and an idle at 1000+ rpm. The engine has tons of torgue so it rides well at low rpm.
You might find this post interesting. JimsGems build the 396 himself and pretty well followed the Westech blueprint and got a solid 482HP. I am not sure of the manifold he used...he says "edlebrock" but that could be RPM or VictorJR and I think that makes a little difference.
http://www.clubcobra.com/forums/show...&highlight=AFR
I think you will be successful with a 500 HP goal if you go with
HEADS - AFR, VICTOR JR, or TRICKFLOW
CARB - 750 DEMON OR 750 HOLLEY
HEADERS - large ID - 3"
MANIFOLD - VictorJR
CAM - Comp Cams Xtreme Energy cam sounds like a great shoice
Andy