What do 96-98 cobras dyno at?

Using the widely accepted 15% drivetrain loss as a rule of thumb, a 96-98 producing the factory 305 horses and 300 ft/lbs of torque, should dyno at:

259.25 RWHP & 255 RWTQ SAE

no way, they dyno at 450 all stock
hahahaha
JK
260 RWHP

im thinking if it had full exhaust and intake then it would be close to an ls1, maybe a tie but thats my .2 cents. but thats a maybe, not completely sure

I trapped 104 with x pipe, 4.10's, intake and a timing adjuster at a measley 13*.

I have run 2 GMs and a Mustang GT on the street. The 1st was a late 90's trans am from a 80mph roll when I was BONE STOCK. It was a DEAD HEAT. Second race was from a dig when I had my gears and X-pipe against a 6spd Trans Am Ram Air with at LEAST a loudmouth exhaust. It was even until 3rd, then I pulled a couple cars. It's like he ran out of breath...I love this car.

The third, was against a 99+ GT. It had a VERY loud exhaust, and chip at least (guy said so). I MURDERED him from a 40mph roll. I am assuming the GT was an auto becuase I bent him over my venomous Cobra knee and ripped him a new one.

I am very confident in my cars abilities. My friend who drives his GF"s moms automatic LS1 Camaro SS says my car feels faster. I firmly believe my car is nipping at 300rwhp, it is a very fun car to drive!