[Tigers] CAT Headers and alum heads

[Allan Ballard <allanballard@att.net>]

The aluminum heads I am looking at have square ports.

The square ports are approx. the same size on all sides as the long side of
the rectangular ports on a stock iron 289 head.

Can the ports on CAT headers be enlarged?

Is there enough 'meat' to grind them out to match larger ports on an aluminum
head?

Allan Ballard
MK1-a Tiger
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