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Thank you visiting Dr. J's Performance The Home of Innovative Air Flow Technology. We are constantly updating the web site with new information, so please be sure check out the cylinder head database for all the latest flow numbers on heads ported here and Dr. J's performance.
Latest News
Hello everyone... I would like you guys to be
the first to now about the New Pro Filer CNC ported AIR WOLF sbc
cylinder head, developed by Dr J's Performance and Speier Racing Heads.
The AIR Wolf will be offered in two sizes a 220cc intake runner and a
245cc .550 offset rocker......to read more click on link.
Dr J's Performance Team's Up With The WCHRA
Dr J's Performance is proud to announce it's new contingency partnership with the West Coast Hot Rod Association. Dr J's Performance will be awarding cash payouts to the winners and runners up in all classes, for racers using Dr J's performance products. The winners of each class will be awarded $50.00 per item used and the runners up will be awarded $25.00 per item used. Racers using Dr J' Performance ported cylinder heads, ported intake manifold, and custom carburetor will be able to take home $150.00 for a win in their race class. If you have any questions please feel free to contact Bryce Mulvey by email
This e-mail address is being protected from spam bots, you need JavaScript enabled to view it
or call 714-943-3404
Motivational Engineering Wins The Street Car Super Nationals
Mike Saiki and the crew did it again by winning the Limited Street class at the 2009 Street Car Super Nationals. Mike was able to hold off the competition with a new personal best ET of 8.48 @ 164.55 mph. My hats off to these guys for all there hard work. I can't wait to see what they do next year!!!!
To check out the 8.48 pass click here
To check out the 8.53 pass click here
Pat McNeil's 1969 Chevelle
Check out Pat's awesome 1969 Chevelle in Chevy High Performance Magazine, Pat's engine made 597 HP with the Dr J's Performance AIR PACK. Click on image to read more..
Magazine Tests
Hot Rod Magazine tests Dr J's Performance ported intake manifolds in the February 2008 issues. To read how Dr J's ported intakes increased the horsepower on Mike Morgans 400 small block chevy please click on the link. The Manifold Man
Check out the complete engine build up on Mike Morgans 615 hp pump gas small block chevy with Dr J's performance ported Heads and Intake in the new Max Chevy
Muscle Mustangs and Fast Fords
tests our reworked ProComp Cleveland in the there story "Installing A 400M Short-Block Into A 351 Cleveland Stroker Engine - Kind Of A Cleveland" please click here to read more.
Engine Masters magazine follows along as we perform our Anti-Reversion valve job on a set of factory Big Block Chevy oval port heads. Click on the picture below to find out what putting a set of larger valves is really worth..
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Mr David Vizard 
Director of Technical Writing for GoFastNews.com. Tests the Dr. Air Products E-Tool in his latest tech post: 
