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those are very nice, got a set on my BJ's

10/16 61x BB @ 84mm 5mm stroke dual 46mm BJ's MSD TL Mod B pipe The boat was great with that prop but I went with a 140mm setback mag with a skat 14/19 skat. The difference wasnt much in initial hit but the mag shines in chop and wash. Also have a 11/17 Spec Blaster. Very happy with the...

mine was 83mm at the reduction nozzle. its the one with the internal fins

yeah

sbt is good for stock boats but if they get modded at all i personally would stay away from the. For the crank use either OEM, Hotrods, or have the crank rebuilt with quality parts. Pistons - I prefer Wiseco's but OEM and Pro-X are very good too. Get quality gaskets too- cometic are nice...

for dual cooling do what he said but then also tap the top boss on the manifold and have the 2nd cooling line in there and then you need to add another water outlet on the stock head and have it go to a pisser (drill and tap the tiny fitting on the front of the head).

sweet deal man, i bought a boat with a motor that was very close to this. It ripped like a mother with the MRD injection and all but I wound up buyin a new cylinder and having that ported and installing some 46MM blackjacks. I paid $1700 for a mint complete race SN (built but never raced though)