yo i have an 02 camaro with mac mids and true dual and i saw a geat diff when i had those installed i was runing 8.80s at the eith mile now with the macs and the true duals i run 8.3s unitll i blew my tranny and rear end witch im testing out on wed at sunshine im hopein to be in the high to mid 7s but i dont know if you will get as much gain as i did since yours is a lt1 i dont know much about those motors.