Re: 318 Poly refresh time - Cam and gear drive info, please

["Gary Pavlovich" <glpavlovich@xxxxxxx>]

Ray,

I would say the 256/.435" (208@.050") Solid or 256/.440" (206@.050") Hyd. 
Poly HP Cam profiles would be what you need want for both HP/Torque and 
mileage...but as I said in the previous e-mail (below) when people "feel" 
the increased torque or throttle response then they often drive more 
spiritedly and then the mileage may be affected.  It's like installing a 
four-barrel carb; the smaller primaries offer better mileage over the larger 
2bbl. venturi/throttle blades but people make good use of the extra power on 
tap.

Gary P.

-----Original Message----- 
From: Raymond J. Henry
Sent: Wednesday, June 04, 2014 5:24 AM
To: 1962to1965mopars@xxxxxxxxxxxxxxxx
Subject: RE: 318 Poly refresh time - Cam and gear drive info, please

While I've never had a poly refreshed (or rebuilt), I have done work to LA's 
that has resulted in better mileage and performance. Nothing major, but did 
like the extra HP provided by what we referred to as a "performance/economy 
cam", or "RV" cam, depending on the source. Too many years ago to recall the 
cam manufacturers, or if one performed better than the others. Regardless, 
the of- the-shelf LA cams aren't going to help me now.

Are there no poly cams available geared towards HP increase while still 
bumping the mileage?

-Ray


-----Original Message-----

Ray,

It sounds like you value MPG and you have a winning combination right now; I 
would stick with what you have as a cam change to the 256F would definitely 
give you more HP & Torque but this would also encourage you to use it and 
perhaps lessen your mileage.

Gary Pavlovich



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Please address private email -- email of interest to only one person -- directly to that person. That is, email your parts/car transactions and negotiations, as well as other personal messages, only to the intended recipient. Do not just press "reply" and send your email to everyone using the general '62-'65 Clubhouse public email address. This practice will protect your privacy, reduce the total volume of mail and fine-tune the content signal to Mopar topic. Thanks!

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