[JHolland]

I've never seen that happen at high rpm but I've certainly seen it at low rpm when running a cam with a, relatively, long overlap.

[PSIG]

Yes, it very much depends on valve timing. It is much more prevalent and impressive on 2-stroke ITBs with their substantial reversion than 4S.

[battilma]

Just got a V.3 board and some accessories from DIY-EFI here in Italy, my second board from them.

James have been very helpful with the shipping (sat stuck at custom 1 week, they immediately provided me the required paperwork to set it clear) and professional, kit is properly packed and parts labeled very well.

Highly recommended.
Marco

[CoCrabtree]

Hi Marco,

Thanks for the confirmation. I've ordered a board , it's at dutch customs at the moment, not sure how that will turn out. Fingers crossed the project will work out well

Regards
Jeroen