Have you tweeked the suspension to handle that power? From what i remember the f-body's handled like an aircraft carrier.
I don't know where you got that impression.
The stock tires are 245-50-16s.
They put the engine back half under the cowl for better handling.
I used to push it to the limit on off ramps.
The center of gravity is very low.
I drove the car all summer with the new engine and M6.
It handles like it's on rails better than the LS IRS even though it has a live axle and can take the extra power.
I'm running a Powerdyne supercharger right now that with the 383 puts out 4.5 lbs of boost down from 6 when it was a 350.
Doesn't sound like much but what a huge difference if you take off the sc belt.
Probably a full second +
I have a Procharger twin intercooled kit I bought used on a Camaro board that puts out 14 lbs of boost on a 383 but haven't gotten to putting that in yet since I had some bugs to sort out with the tuning having developed a miss.
The 383 is from Golen Engines who specialize in LT-1's built specifically for supercharging with nominal 10 to 1 compression.
It sings up to 6000 rpm like a hot bike.
Engine and M6 took a lot longer and had more bugs than initially expected.
I don't dump the clutch at 4000 rpm to launch it so I'm not worried about breaking the 7.75 diam LSD 10 bolt.
For test flights
I have a private lift and a virtual 1/8 mile smooth concrete drag strip in the empty shopping plaza sized parking lot next to my building in a large industrial business park at the end of a dead end street.
Can let it go up to 85mph or so before having to slow it down.
Maybe with 10 more lbs of boost and 450+rwhp, (330rwhp 410 flywheel right now) with the 4.5 lbs it may need a 12 bolt rear end and some suspension pieces but only if I actually break it.
After all the time it's taken I just want to drive it now for a while as it's extremely joyfully satisfying as it is.
The mystery problem of an intermittent miss that threw no codes but flashed the SES light was oil from the supercharger pcv oil trap thagt I added was leaking onto the optispark distributor under the waterpump and filling it up causing my problems.
After changing out the distributor and sealing it to be watertight the car ran great just before I put it away.