Paxtons are not huge compression makers. They add a small boost not requiring a lowering of compression through piston or head changes. For example, the Studebaker Avanti Paxton-supercharged motors of the same era were, as far as I know, simply a factory addition. They did, however, change the cam for an "R-2" Avanti. Wayne ----- Original Message ----- From: Moparpjf@xxxxxxx To: wgraefen@xxxxxxxxxxxxxx ; Chrysler300@xxxxxxxxxxxxxxx Sent: Sunday, May 23, 2004 8:08 AM Subject: Re: [Chrysler300] twin paxton chrysler In a message dated 5/23/2004 9:06:22 AM Eastern Standard Time, wgraefen@xxxxxxxxxxxxxx writes: There are to my knowledge two sets of twin Paxton superchargers for the long ram cars still extant. I'd have to look this up but my recollection is that 10 sets were created. Four decades ago you could have called Paxton and ordered this set-up. Wayne and all: How do you put superchargers on a 10.1 to 1 compression ratio and not blow the bottom out of your engine? Did the supercharger option come with a lower compression ration motor? Pete Fitch [Non-text portions of this message have been removed] To send a message to this group, send an email to: Chrysler300@xxxxxxxxxxxxxxx For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Chrysler300/ <*> To unsubscribe from this group, send an email to: Chrysler300-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/