TBH, huge, regular flames is just wastage - your chucking unburnt fuel out of the exhaust.
Mine used to give the occasional pop/flame, but now it's been mapped, its been pretty much dialled out in place of more power (I can still get a pop, but I have to 'make' it do it)
If it's happening that much, I'd look at all your ignition elements - dizzy cap points and rotor arm (youve now done), take out the sparks and clean and regap them carefully, or replace if you're at all concerned, check you have decent quality/condition HT leads. Also, check your timing, especially since you've been changing dizzys
It may not be as 'impressive' as flames, but the car will run much better and you'll thank me for it
