It uses factory wiring looms under the hood, very slick. When I looked inside the passenger footwell, however, I found a modest amount of cut-n-splice wiring where the 940T engine harness was joined to the 240's main harness. Not that bad, though.

Heads make all the difference on a B20. I got really lucky on eBay and scored a late production R-sport stage 3 B20 head for my PV's 2.1 liter B20. I pulled the valves to have a look on my original F head, and was amazed at how small the exhaust ports choked down slightly past the valve seats. The same area on the R-sport head was easily 1/3rd bigger. It really lets the engine use a high revving cam. Best to have a finely balanced bottom end that can rev up more than normal. I came this close --> <-- to building a high-zoot bottom end to go with mine, with custom rods and pistons, but at the last minute I blanched at the price and use stock rods (6 bolt B18 rods) and B21FT pistons. Had it all balanced exceedingly well, though. Revs very smoothly and pwoerfully up to 7K now, as fast as I dare spin those rods and pistons.
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I'm JohnMc, and I approved this message.