i totally agree wid bizkit boy . packard won the sinlge, double, and triple cylinder class at the planet sand drags in mexico last month. a&s and k&t also won some classes out there as well. both excellent builders i.m.o.
i have a motor done by sanford atv in n.c. and it f**king flies. i run 4.30`s in 300ft and mid to high 6`s in the 1/8th. a buddy of mine has one done by them also and his turns 6.30`s & 6.40`s in the 1/8th . give him a calll at 252-438-2730 he can hook u up tell him ted and eddie sent ya.
i run a 4mm long rod (5mm) crank wid no spacer. but i do run long rod blaster pistons and the head was cut too for the stroke. ive also ran a cool head wid this setup wid no trouble at all. the spacer is a waste in my opinion, if its done right u wont need it .hell ive seen 10mm stock cylinder motors w/ no spacer.