.The engine shop at Doug Herbert Performance has the most knowledgeable engine builders ever assembled in one place.  At Doug Herbert Performance experts can build a complete motor from a Claimer to a Top Fuel engine or just do the machine work for racers building their own engines.  You will get the best quality at the best prices.  Doug Herbert is not only a NHRA Top Fuel Champion and the second man to ever go over 300 mph, he is also one of the most knowledgeable cam shaft experts in the country. Ron Neal’s engines have won races from Macon Speedway’s 1/5-mile dirt track to the high banks of Eldora Speedway, and from Rockford Speedway’s ¼-mile asphalt track to the high banks of Daytona’s 2 ½-mile track.