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Griff 05-07-2013 01:28 AM
Originally Posted by dandercam1 (Post 3920196)
What years where the TB IV ignitions used?...I had a 96 7.4 that was rev limited to 4750
96-97 were the switch over years to TB V's which would have rev limiters. All the TBI, EFI and MPI have a TB V and rev limiters.
Carbed engines should not, but I have also heard of some having the TB V's and rev limiters.

The carbed Merc Racing(blue) engines had TB IV's but had an add on rev limiter.

Greatguy66 05-07-2013 06:25 AM
Rectangular ports are Magnums!Steel crank!


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