Hi,

Here's the deal. I need some insight in to where I should look for help...

VW Jetta:
ABA 2.0l 8V cross-flow engine
Mikuni 44PHH carbs
locked out distributor
OE ignitor
Kent racing cam
Race valve springs
Titanium retainers
NGK wires
Accel coil
champion racing spark plugs

At 6500 RPM in 4th and in 5th (not quite sure about third - I'm hardly in it much at Mosport) I get regular sounding misfire and the car will not pull much past 6500 rpm

I'm figuring that this is either an ignition issue or valve train. I'm thinking that it is not fuel as it happens at the same rpm in both 4th and 5th, and in straights and corners, always at the same rpms.

My first suspect is the Accel coil. I will be replacing that shortly with an MSD blaster coil and MSD 6AL ignition box. I hope that this solves the problem.

The questions are:

- is there any rpm limitation on any OE ignitors? Do any have rpm limits built in to them? What sort of rpm is the OE ignitor capable of working at?
- Just how crappy are Accel coils?
- Is this valve float? In 4th gear the car pulls pretty strong and then quickly fades as I close on 6500 and develops a very fast and even misfire. The closest to which I can describe it is that the car starts to sound a bit like a air cooled VW bug...