i just fitted my re-built b16a head with itr cams/springs/retainers etc into my car and its hunting somewhat.

it likes to idle between 400-800 rpm, and somtimes it bogs down when i push the throttle with the engine at high load (ie: say 25mph in 4th and i open the throttle half way)

i am using my oem b16a inlet manifold BUT its been opened up to match my itr throttle body (as you all know that t/b does not have the hole for a FITV valve like the oem throttle body) could that be causing the hunting?

or could it be the hondata intake manifold gasket i have? does that need 2 additional oem gaskes either side of it or are they fine and seal as they are?

the iacv valve was cleaned throughy and checked, and we hooked up all the oem vac lines as they were. any tips on how to find where the leak is?
the car was tuned on BRE so all the air fuel ratios are spot on , we had to disable the secondary o2 sensor though as it was giving a bad reading compared to the the wideband (its obd0 btw)

any quick ways to determine where the leak is coming from would be appriciated :D

cheers