RE: GMS Engine Tuning Problem
Hi Flyer Freq,
Funny you just posted, I saw Spicoli's name in another thread and just PM'd him to ask how he made out.
Since my last post I've modified 3 GMS .47's by just drilling out the intake nipple and making the hole in the brass insert as large as possible directly under the intake nipple - as shown in the previous pictures.
Keep us updated.
Fly4Fun,
Wayne Miller