VX, IDK why?
Sounds like you're kinda going backwards for longevity for a rare/desirable/useful 245 Classic in a cold climate to delete the airbox pre-heat &/or install a cam that won't stump pull/idle glass smooth off idle?
T > M unless it needs to pass CA NOX in L.A. from brand new for an OEM thru the warranty.
The VX-copy in inferior/non OE metal is fairly worthless, I guess it has less reversion than the B does if you have to drive in the city/don't blow the carbon out of it all the time or have CI FI continuously rinsing the backs of the valves point-blank with a fine/variable nozzled spray, otherwise I'd just install a T or A of cheap & factory reliable / quality metal cams?
Is the auto-tragic a little worn out or injectors dirty or compression questionable or crankcase vent a little stuffed/sludged up?
Pre-heat tube installed & working probably isn't a *bad* thing if you live somewhere where 0?F is common...
Super light 240 classic wheels & 185-70-14s are going to be nice & light to spin up.
205-70 is real heavy/flubbery for 240 steelies or classic wheels for economy or acceleration / both.
Other than the crazy wide sidewalls to protect the rim, IDK what you're really gaining there?
195-70-14 / mini-truck size is kinda the go-to for the modern compromise instead of OEM wagooon 185R14 (tho as dl242gt sez, classics & some 1993 245s w/optional classic wheels took the sedan size & speedometer (as did 245Turbos on Virgo wheels).
IDK on 'n/a 240 performance' it's a slow & old car?
Be happy it goes at all & hopefully the motor/drivetrain's healthy & it drives straight & isn't (too) bent
?
Why make it noisier, risk breaking anything you probably can't get anymore in quality/proven bolt-in no fuss replacement/OE, get worse MPG or have less 'usable power' @ off idle &/or super lean-burning max cruising efficiency in the flat ~1500-2200rpm that either the super lazy AW-70 w/slow stall speed converter/tall gears lazily keeps the engine at &/or super wide ratio M46/47s have w/super tall 3.31 rear axle or impact longevity?
Is this thing super strict CA emissions 1993+ with pulse-air injection & EGR?
Delete or block that off (to be saved if restoring to stock or CA squeaky-clean compliance) if it isn't required / install different ECU/ICU for 49-state version?
Not really good for anymore peak HP (no EGR at heavy load), but usually an MPG or two cruising or HP available at low rpm to pull-along?
I haven't had melted cats be an issue on cared for non-abused cars that ran tip top & didn't have some other fairly severe issue?
Worn / non-reactive catalyst, sure, but it still flows?
The OE kitty has a larger honeycomb than most aftermarket & bolts in & works & lasts?