I used to have a rag top 94 lt1 automatic with 273's gears it ran 14.70's at 96 mph it always ran strong even with the the 273's a set of 342's would have been perfect. i now have a 94 GT t5 trans and 308 gears it hasnt been to the track yet but it pulls pretty hard off the line but i feel that a lt1 would pull away at mid track but i wont wait for that to happen i got my 6psi powerdyne supercharger ready to bolt on for my first up grade.on my 94 GT.