Does it have a Rev Limiter
 

I have a friend of mine, which he upgraded a 7.4L 330hp 1995 model Gen 5 to about 450hp. Now we started the engine and everything is fine, it idles like a clock. The problem is when we rev the engine till 4550 it's ok, above 4600 rpm it's like it hits a rev limiter and it dosen't let you go above 4600 rpms. Does this engine have a rev limiter?? and if so were is it fixed and what replacement shall it do.

If it is the stock ingition, Yes it has a limiter, I do not know of a way to Bypass it, Maybe someone else here can help you with bypassing if possible, on my 95' I changed it to MSD Marine with a larger limiter.

Thanks Hoozey.

Is there anyone that can tell me how to by pass it or what to replace??

Is there anyone that can tell me how to by pass it or what to replace?? or tell me what to replace to get the full performace of the engine.

with the sys. thats on there, you are LIMITED, ha-ha. change it to a older thunderbolt sys. the disadvantage is it will take the knock sensor out of the loop.