Advice on upgrades

[86911cab]

I have a 1986 with the original 3.2. I have made a few upgrades and I’m looking for advice on improving performance.
Upgrades:
m&K 1 in 1 out sport muffler
m&K Pre muffler
Steve Wong 91 octane, 6800 rev chip. SPC 2550
Recently had top end rebuild with cams reground to C2 specs.

I have two questions.

What would be the best spark plug heat range? 6,7,8? NGK? Bosch?
Would I benefit from a more aggressive chip? (Probably a question for Steve).

[RarlyL8]

Steve has a chip for our premuffler/muffler combo so you're covered there. The next upgrade I would consider is Sal's injectors for Carrera. We installed these in a couple of Carreras along with our premuffler/muffler combo and were not just impressed but shocked at the power gain. You will need to reprogram the chip but Sal has that covered as well.

[Cevan]

Originally Posted by RarlyL8

Steve has a chip for our premuffler/muffler combo so you're covered there. The next upgrade I would consider is Sal's injectors for Carrera. We installed these in a couple of Carreras along with our premuffler/muffler combo and were not just impressed but shocked at the power gain. You will need to reprogram the chip but Sal has that covered as well.

Was this just new injectors or was it the MAF/AFM swap too? I currently have your pre-muffler and exhaust on my car now with a SW 93 octane chip.