68 chevy impala convt, just got my hands on a lq4/4l80e out of a wrecked 2007-1500hd 2wd with 9k miles on it.. The lq4 will be replacing a 406 stroker sbc/t400 that is currently in the impala. Trying to go modern with the power train but still need that classic h.p. punch. Daily driver RCLB 2003 Sierra 2500HD plow truck. Just looking for h.p. tips for the lq4