okay so i've bought everything from crower and everthing is installed but for some reason it won't start! it sounds like its struggling, not fast enough to fire. i have spark. heres what i got.

10.5:1 compression 82 mm piston
crower type-r crankshsaft w/ 95 mm stroke
crower valves, springs, retainers
crower stage 3 cams with adjustable cam gears
type-r head/gsr block/sir2 tranny

how far does the timing need to be advanced or reterded since i went from stock 92 mm stroke to 95 mm stroke?

how do i find out if my cam is 180 degrees off (upside down)?
nothing is making contact or interfering.