[BigAls87Z28]

Well, looks like I showed up late.
While I have a thing for 87 Z28's....I would have stuck with your 89.
If you were gunna drop a larger engine in any car, I would have stuck with the auto car. T-5's in third gens arent known for thier outstanding strength.

But is your car an L69 or an LG4? Congrats on it, 87 is a great year...