9WON4

I havent touched the timing on my jdmb18c1. Rpm put in a new belt with pumps at swap time......the motor ran like a Gem for a full year.....Then recently, I took it to the track and we experienced some sputtering on the way(before we got there). I bought new plugs which are pre-gapped from acura(at the dealer-oem)......and when I pulled them....the plugs and bottom of the spark plug boots we're covered in oil. I did the required valve cover gasket(cause thats what that is-the grommets were there problems) repair. Motor seemed to run harder than ever for like 2 days until the sputtering AGAIN at 2000-3500 rpm's.............I was beside myself......I have changed the wires and the plugs twice(my 1st set got drenched in oil before I repaired the valve cover gasket set).........the dist. rotor and cap are soooo clean.....No Red dust .....just dust from packin' 30,000 miles on the motor. It stops bogging and sputtering after I floor it.......How do I stop this........it ran great for so long.....and the valve cover gasket was prolly never the MAIN problem all along!!! I had my racing mechanic/pal look at my car.....he diagnosed the distributor and wires to ensure they were getting a pulse he said they were and that it was most likely an ignition problem. I have received no codes......I only wish I did!!! Could this be an ECU Problem.........(should I get a usdm 0bd21 ecu or a jdm?) thanks for ANY help......Im really confused.