EB Bro

Just fitted a crow cams 2222519 cam cam with 262 durartion and 493 lift, running pacemaker race series extractor and hi-flow cat to my EB. My problem is on gas it leans out at around 4000 rpm. Does anyone have any ideas about fixing. I've been told the mega-gas converters can't be re-valved> Bullshit
My Next problem is the trans, after 30 mins of solid driving in traffic it doesnt kick down anymore and becomes a real slug. Anyone know anything.
EB made 120 rwk on petrol without a piggyback, and 105rwk on gas. Hopefully a uni-chip will fix the idle though.

INJECTED250

Some GAS converters are considered to SHIT to kit. Some of the kits are dearer than other converters.
What gas system is it running , MIXXER and SIMPLE converter like impco kit, OR GAS ring and Complex converter, like landy or omvl???

And has it got computer controled power valve???

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EB FALCON
98 T5 gear box (was auto)
Wade 977b cam
3.7 lsd
AU bottem end
ELXR6 ported Head
PH4480 Pacemakers