thanks for info mate, thats what i was looking for, yes many folks don’t install items properly. I have seen first hand a bloke that cooked a clevo stroker on start up, to impatient to check things, firstly the dizzy was 180 out, was turning over but not starting so he put fuel down the carby and nothing, i turned up and spotted it and spun it around for him, next it fired, but seeing he had put fuel down the throat boom, singed eyebrows, i got him a baseline to run the cam in and the thing starts running hot, he forgot to rehook up his big twin thermos, by then the lump of iron was boiling and we had to shut it off 5 minutes into the cam break in, 680 though cam and he didn’t even remove the inner springs, the end result was wiped lobes, dissy gear was shot, we never spoke after that as none of this was his fault, i have also seen a remote oil system that flowed the wrong way, dats not good either, and another guy with a high revving holden motor, these things have bad harmonics and can loosed the fly wheel bolts, well even quicker if you have them FINGER tight. Electronics can easily be wired wrong, so with advice and double and triple checking when i do the igniton system on the built motor it will be right to go, my other option is to do my electric's now and make it all plug and play and dont have these issues while trying to run huge cams in and unknown carbs, might even keep my stock head and carby to bed the cam in, then change to the other head and carbs.