If your're a TPSA "Old Racer" your combination probably fits really well. The short version is all of the existing rules apply, weight, cubic inch, single 4, pg, etc, but only "out of the box" cylinder heads produced prior to 9/07 are allowed. Porting, polishing, angle milling (22* min) is legal, but NO semi-finished or raw castings, cannot move valves, guides, spark plug location, weld combustion chambers, etc. Also, no Alum or Hybrid convertors. We will have a Pro class winner at each event, and a 2011 Pro Champ will be crowned at the 2011 Championship Banquet. This class is a work in progress and we'll be monitoring and making notes for 2012, but this year we just want everyone to come on out and have some fun! We expect the et's to be in the 70's -80's in the good air, probably .1 slower in the heat. If you have any questions, call me @ 512 756 6384, or click on my initials below to email me. Thanks for your interest! -- Texas Pro Stock Association Message Board

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Date Posted: 02/17/11 4:01pm
Author: DH
Subject:

If your're a TPSA "Old Racer" your combination probably fits really well. The short version is all of the existing rules apply, weight, cubic inch, single 4, pg, etc, but only "out of the box" cylinder heads produced prior to 9/07 are allowed. Porting, polishing, angle milling (22* min) is legal, but NO semi-finished or raw castings, cannot move valves, guides, spark plug location, weld combustion chambers, etc. Also, no Alum or Hybrid convertors. We will have a Pro class winner at each event, and a 2011 Pro Champ will be crowned at the 2011 Championship Banquet. This class is a work in progress and we'll be monitoring and making notes for 2012, but this year we just want everyone to come on out and have some fun! We expect the et's to be in the 70's -80's in the good air, probably .1 slower in the heat. If you have any questions, call me @ 512 756 6384, or click on my initials below to email me. Thanks for your interest!
In reply to: Old Racer 's message, "Different classes" on 02/16/11 7:54am

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