it's pretty standered on most TB cars from 1980's on up it's not a big HP mod but all the engine's I'v built over the years, 90% of the time iv gotten rid of the TB coolant line it help's a bit after the car is at running temp, it's not making the air as hot as it passes through the TB by a few deg. but still a mod non the less and every bit help's and yes it's on the SR TB as well hope this help's a bit
art