North American Turbocoupe Organization

Boport stage 3 head
BigJake Offline
Junior Member
I have a Boport Stage 3 Head with the 2.1 cam that's going on a stock 2.3 turbo engine with stock pistons.

Has anybody ran into valve to pistons clearance issues?

I also read that someone has advance his cam timing by 10 degree's to boost bottom end power. Has anybody played around with that much advanced ?
1987 Thunderbird Turbo Coupe 5 speed

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