Picked up a copy of Chevy High Performance magazine, looks like enough related articles of interest to recommend but nothing specific. The frame intended for unibody cars is mentioned again in this issue. It is mentioned for use in pre-80s cars, but likely could offer one for third gen cars down the road. There is also more LS1/LS7 engine coverage. Performance Q&A has some related 3rd gen mentions anyway. I'm thinking a swap from the L98 to LS1 is one thing to consider, as they say the LS1 has an improved upper half for cooling and air intake.

BILL