It's got a bd10 and 14 cams, 24.5mm ports(pretty sure that's correct) 10mm inlet spacer with 4x4 cover. 8-1 CR

It drives fine when driving hard when I said miss a beat I meant when casually driving it stutters slightly, doesn't feel like it's blowing the spark out.

I think it's more to do with the old loom than anything.
B4 getting it on rollers for a check over/thumbs up I'm going to get a new loom, wasted spark fitted, new plugs and some new sensors.
That's me skint for another couple of weeks LOL