Quote Originally Posted by dougie_504 View Post
I'm all for modding engines, but I just believe that you go like this (for power):
1. I/H/E
2. Head build (mild) - mildly aggressive cam shafts/gears + tune
3. Head build (aggressive) - more aggressive shafts, supporting valvetrain, head work, TB/IM + tune
4. Block (mild) - larger displacement + tune
5. Block (aggressive) - high comp pistons, lightweight crank maybe, forged internals a good idea + tune

Flywheel upgrade a fun idea. Clutch upgrades as appropriate.

To me personally it just makes more sense to do things this way due to accessibility to head/block for labour, power gains, laws regarding engines swaps (block numbers), being able to put a built head on a bigger block if you need more power later etc.
Wouldnt it be better to do just one final tune at the end of all your mods? instead of having to do a tune every now and again. Id understand if it was over a long period of time though. Please enlighten me