[john corcoran jr]

What most people think of as corporate motors is not the NHRA definition. The NHRA view is that any motor allowed as long as it is from the same manufacturer. So you could use a Gen 3 Hemi motor in your Plymouth or any GM motor in any allowable GM car body.

The fender vents on a T/A help relieve the warm air buildup under the hood. Stand next to mine on a hot night and you will feel the heat pour out while the car idles. With the car in motion, I am pretty sure it will help move the air out from under the hood. That is why Pontiac called them air extractors. All the items Pontiac hung on the T/A had a purpose. The shaker took in cold outside air, the wheel flares smoothed the air around the wheel openings, and the rear spoiler put over 100 lbs of downforce at 55 mph.

Casey now drives Lynn's black 3rd gen T/A.

Stacy sold his 3rd gen bird to build his Grand Am. Tibor Kadar bought it and won a Div.7 with the car. Tibor later sold the car to me so he could build the 77 Firebird stocker that Tommy Pettigrew now drives. I ended up going through and updating the car including replacing the 400 6x motor with a SD455 from Don Kennedy. I heard that Tommy replaced his Pontiac 350 with a Chevy 350.