If you only have 5-6k to spend if you do a short block first that will eat up most of that money right there if you are having someone else install it. As far as blowers go, Id go a T-Trim or Novi 2000, I’m going to be upgrading to a T in the near future.
The problem is with the cars you want to run against they are making mid 500s and I know the Supras are lighter so you would have to be making high 500 if not 600 rwhp.
Here’s a list of what you’d need:
Forged Short Block: $4000 (VT Sportsman)
Blower Cams: $500
Heads: $1500-2500
Supercharger: $3795+ (Mongoose SQ-Trim) T-Trim will be more
8 Rib Kit w/ Pulley: $650
Paxton A/A IC: $1500 (Could do custom for cheaper)
Vortech Mini Race: $250
Cobra Tank/Pumps: $1000 (can be bought cheaper)
Total: $13200 and that’s on the light side. This is also without upgrading
suspension or your rear end and you installing everything your self.
In all honesty, if I could do it all over again I would have bought a Cobra. Cheaper to mod and you can make tons of power with out having to tare into the engine.