Hey I was checkin out the pics of your Dart- very clean. I almost have the same setup on my slant, even got those perdy Cox rollers on top. I am working with the Offenhauser 4 bbl intake right now cause thats what I had laying around, but I have been pondering that Hyperpak setup for a while. I ran some engine analyzer tests on computer and it was showing a big HP and torque gain as the intake runners got to the Hyperpak length. I am wondering if you saw some noticable gains with that setup. I was also pondering the bracketry needed to support that bad boy, it seems real long for those little studs. Also the rerouting the linkage to work with it. How much of a pain was it to set all that stuff up?

sorry to hijack... by cox rollers on top you mean roller rocker arms? i NEED that... how much did you guys pay? any pic would be greatly appreciated.

Thanks

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Juan Ignacio Caino

Please use e-mail button istead of PM'ing. I do log in sometimes but I'll be answering quicker thru e-mail.

If I remember right, the Cox roller rocker set up costs somewhere in the mid $500 range.

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Argentina - Check here for pics
http://www.slantsix.org/forum/viewtopic ... sc&start=0

I got these second hand for a reasonable price - check with Rocker arm Specalities or cox brothers for pricing. - The ratio for my arms is 1.6


73 Scamp - The hyperpak is great for torque in the midrange.

It really pulls from 1800 RPM to about 4000 RPM.

It falls off after that, and that is where the short runner intake is better suited for top end.

The hyperpak is great for all around driving with the Carb heating being the main obstacle. - I believe DusterIdiot can Help you in this dept. as he Drives his in the cold alot.

I just run mine in the summer with no provisions for carb heat.

I have no way to actually compare the Hpak to a regular menifold on my car as I never have run a regular short runner on it.
I have no kick down issues as I run a 4 speed.

I say go with a lokar cable tranny kickdown setup.

I had to do some custom fabrication on the THrottle cable mount with junkyard parts and Some spare steel.


With My current H pak Setup and 4 Speed. the car runs 15.05 at 90.xx MPH


Greg

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http://www.youtube.com/hyperpack

thanks for the link, I'll just have to wait untill your bandwidth "cools" off

I can't wait to see those roller rockers.

I checked with rocker arm specialties, I specifically asked for roller rockers and they sent me a regular refurbised (very good refurbishment indeed, but not what I asked for) rocker arm assembly... they said they sent COD so I guessed fine... but when it arrived, it was a plain old rocker arm assembly and not anywhere near the roller type.

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Juan Ignacio Caino

Please use e-mail button istead of PM'ing. I do log in sometimes but I'll be answering quicker thru e-mail.