[Steve C.]

I will suggest you have no interest in running a Victor intake... However, for interest to point out the potential of a properly worked HSD intake.

I did some back-to-back dyno testing with the two intakes. The HSD intake with my HP950 carb and a 1/2" open spacer made 589.4 hp at about 5700 rpm on the dyno, this was on a previous pump gas 4.210 stroke 462cid street engine. With the same engine & carb my Victor intake with 1/2" carb spacer made 600.9 hp at 6000 rpm. Both intakes had a port entrance opening about 2.300" tall, and were properly port matched to the cylinder heads in use.

HSD / no carb spacer:
577.9 hp at 5700 rpm, 581.0 ft.lbs. at 4400 rpm.

HSD / 1/2" open spacer:
589.4 hp at 5600/5700 rpm, 589.0 ft.lbs. at 4600 rpm.

HSD/ 1" open spacer:
589.8 hp at 5700 rpm, 590.8 ft.lbs. at 4400 rpm

I know peak numbers don't express the whole story, really need to look at the curve with each different spacer. A bit of clarification and related to the numbers I posted. The HSD intake I used was not your run of the mill intake, it was modified by Dave Bisschop with plenum and runner work. And probably VERY similar to the prototype that Dave did for the production Tomahawk intake. Except note the Tomahawk intake as cast for marketing reasons does not have the large port exit openings in order to be used on 'factory' cylinder heads.

Side note, regarding Skip's post #3. He borrowed my modified HSD intake for his testing with the Torker II intake.
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