Just had to make a small correction here.

'87-88 Turbo Coupes were rated at 190 hp and well over 200 ft-lbs.
SVO's made around 200 hp.
'83-86 Turbo Coupes were rated lower but they didn't have the bigger injectors and such the later cars did.

Also, on a late-model 2.3T (with the big VAM and 35# injectors), bumping the boost to 17 psi and installing a 3" downpipe will get you 20+ hp. And another beauty of the 2.3T is that it makes lots of torque, VERY easy to make 300 ft-lbs with a 2.3L turbo and it comes on low in the RPM range.

I did a cheap DIY build on the 2.3T I built for my old Turbo Coupe, ported the head myself, got a couple fun parts like a used Motorsport A237 cam, tubular log manifold, etc. Had maybe $1500 in the whole shebang including the go-fast parts, still on stock injectors running 17 psi and I estimate hp around 275-280, I never did get it dynoed though.

I find it hard to believe you could build a 450 hp stroker SBF for $1100 though.

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2009 Ranger SCab XL- 4x4, 4.0, auto, 172K. Project "Low Buck Truck." Pre-keys, #1 bars, blocks, Ranchos, 32x11.5 Discoverer STT's on 15x8 AR Bajas, dual exhaust, AEM dryflow drop-in.

2005 Mustang GT- Tune, CAI, Longtubes, suspension, etc.